Jars Needed for Gifts-In-A-JarI would like to make a bunch of gifts-in-a-jar (cookie mixes, cake mixes, soup mixes, etc.) for Christmas this year. I now need to know where to get quart or liter-sized jars. Suggestions, anyone? I've seen nice ones at kitchen and houseware stores, but they often cost upward of $10 each, and I can't afford that. Sources for inexpensive sealable bottles would also be appreciated. Thanks!