Before you throw away those soap bar slivers, consider ways that they can be used up. This guide is about using leftover pieces of soap.
Read and rate the best solutions below by giving them a "thumbs up".
I keep those slivers of soap in my sewing box. The skinny, thin slivers work great for marking my seam, or to make an X on the material. It washes off so easily. I've used it for crafts, or for sewing.
It is also good to rub over itchy seams made by thick thread or those itchy tags. Just rub it over the itchy spot and it smooths it where it doesn't irritate your skin.
By Nana Lee
Don't throw away bar soap that dissolves into those little irritating pieces. Save them and add water, then slowly melt them down on the stove and use as liquid soap. Or melt them down without water and pour into greased jar lids or anything you want to use for the a mold and you have new bars of soap!
When bars of hand soap are almost finished, getting the small remnants to stick together properly (so that they can be completely used up) can be a pain, and they certainly do not look quite right for use in the guest bathroom. If you simply stick soap bits together randomly, the ugly mass tends to hold dirty soap in the crevasses, and they tend to fall apart, anyway.
The suggested method is probably easiest with bath soap, where one uses a facecloth or sponge (or the net equivalent), although it works with smaller bars, just as well. By rubbing the sponge consistently on one side of the soap bar only, that side wears down quicker than the other, becoming concave, making it easier to ensure that the thin, remaining sliver of soap (from the almost used-up bar) fits snugly against either convex surface of a new bar.
Pressing them firmly together when both are wet results in what becomes a single, homogeneous convenient-to-use bar. If the two bars are the same color, they soon become indistinguishable as being joined components and the soap is used to the utmost benefit. What is more, your guest bathroom will not be disgraced.
And there is absolutely no waste, whatsoever.
When bars of soap get down to little piece, what do you do with it? Throw it out? Well there is a way to "recycle" the small pieces of soap. You can use a mesh bag, that oranges and apples come it. Cut a pieces of the mesh bag, place the soap pieces in the middle, and tie with a string. It lathers up nicely. Now when it's gone, it's gone, and you save money too!
By Irene from Williston, FL
Don't throw away small pieces of soap. Gather together like colors of soap (or you'll end up with an ugly colored ball.) Place scraps in a bowl, and if they are very small - great, no further work needed. If not, break them up with a knife, sprinkle pieces with warm water; let sit 15 minutes to soften.
Gather up a handful and squeeze into a ball shape. It will take from two days to two weeks to completely cure in a warm, dry area. Reshape every two days to maintain a round shape. Don't worry about irregularities; they will lend interest to your soap.
I keep slivers of soap by the sink. I use a wet Q-Tip and rub it on my sliver of soap to remove spill over mascara. Works like a charm.
By michele 
I keep a plastic disposable type glass in the shower and it fits perfectly snug in the towel bar. I add all the slivers of soap with a small amount of water and use my netting shower poof to obtain the creamy soap. No more wasted soap.
By Ceil from Tavares, FL
I use a plastic bag to carry my fresh set of underclothes to the gym. Outside of that plastic bag is another plastic bag. After I remove the clean underclothes just before entering the shower, I place the used underclothes in the outer bag. To keep them from smelling too much, I have pieces of soap in that outer bag.
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Here are questions related to Using Leftover Pieces of Soap.
What can I do with leftover pieces of soap? Can they be microwaved and reformed?
By Julie L.
By kitkatk100 06/03/2011
I've melted them in the microwave a few times, but it can be tricky. Line a small bowl with wax paper, put the slivers in it, and then microwave at 30% power for 15-second increments. When the soap is soft enough to stick together (the bar may be hot), squeeze it in your hands to make sure it's compact, and let it cool down. The bar will feel a little too hard to use the first few times you use it, but after that it will feel (and work) like a regular soap bar. Good luck!
What can I do with old slivers of bars of soap?
By Janice from Hays, KS
I toss small soap bars in the tray area ... where you put laundry soap in my washer. Then they slowly dissapear as the water runs over them. Just an added bonus to the washing per say. I also have done with with all my old dish soap..dishwater soap.I drain it all into my washer. Yes I have a front load and been doing it for 10+ years with no issues.
Since I was a little girl in a house of 6 kids, we always had leftover pieces of soap. I saw a container in the Harriet Carter catalog on a product that turns old, small pieces of soap into hand soap in some kind of container. Does anyone know where I can find one, I have tried looking in the Harriet Carter catalog and they don't carry it anymore. Any help?
Koren form Virgin Islands
By (Guest Post)10/08/2005
I've had a "soap saver" from Harriet Carter for years. It is very handy way to use all those little pieces of soap.
I found another source. www.ShopHomeTrends.com
or phone 1-800-810-2340. product # 409000
Liquid Soap Maker (set of 2) $11.95.
I regularly have many bits of soap left over. What can I do with these? It is so very wasteful. I need a method of using the last little bits.
By Pixiedust7 05/07/2012
I buy packages of thin nylon scrubbing pads, about 4" x 5" each, from the $1 bin at the grocery or drugstore. I take a new scrubber, fold one end up about one third & sew the side edges with any old leftover thread, making a pocket.
I put the soap scraps in the pocket & tuck the other end of the scrubber into it, creating a soap filled scrubber. I add more soap scraps to it when I have them. When the scrubber is worn out, I make a new one. It's very handy to grab for just about anything that needs a little scrubbing to get clean - just moisten it with water & scrub. I keep it in a plastic caddy with drain slots suction-cupped to the inside of the sink.
How can I use up old bits of soap? Perhaps make into fresh bars to use. Any other suggestions?
By Frugal Sunnie 10/01/2012
I crocheted (all cotton, cost $1 on sale each to buy the Peaches 'n Cream yarn) bath mitts, simple rectangles that we slide the soap and hands into for a good scrub up.
Since I made those mitts, lol, we no longer have soap bits:)
Can I melt pieces of soap into big bars of soap in the microwave? Thank you.
By Terry from PA
By Maile 02/14/2011
I've never melted soap ends, but what I have done is taken the ends and pieces and tied them up in a nylon mesh and made a 'scrubbie' out of it. It's great and foams up like you wouldn't believe!
After making bars of soap from pieces, how should they be stored?
By Chris from Cumming, GA
You can place them in toe of a piece of pantyhose (knee high). I do this and tie it to the outside faucet for easy clean-ups after working in the garden.
I have a jar full of soap jelly made from leftover toilet soap. How can I use it now?
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I would like to use up those little bits of bar soap that seem to get left behind. I have think that there must be a way to re-melt them and use them up.
AA from British Columbia
Post by Denise
Post by Xerophyia
You can make your own handsoap from one bar of soap. Grate one (1) small bar of any kind of soap or pieces of leftover soaps and add 3 cups of water. Put mixture in a microwave safe container and zap for 3 minutes. Pour into a handsoap container with a pump when cool. Makes 24 oz. (03/29/2006)
By Mary, Crown Point, IN
I would like to know what to do with leftover pieces of hand soap. I have started using liquid soap for hands, but have plenty of soap pieces left over.
We have all had needs for bath soap etc. and I have found that each bar costs lots of money. I have made up my mind to recycle all of the bits of soap-ends...
What can you do with small pieces of soap besides put on big pieces of soap?
By Ed M.