(1) Every time you walk into the room, put away five things. It takes a little while to make this a habit, but it's a very easy thing to do (should take about 60 seconds or less) and in a few days you'll be surprised that such small acts have started to make a big dent in the clutter.
(2) Make sure you have places for all your stuff! You can't put things away if they don't have a home to go to. ... View related article.
Depending on what zone you live in, liriope (lilyturf) might be an option. There are two main varieties: clumping (L. muscari, I think) and spreading (L. spicata). L. spicata is more hardy (to zones 4-5), but the flowers are less noticeable. Lilyturf will take to moist ground in either sun or part shade, but not standing water. (I think by "not snakey" you mean "not viney"?) ... View related article.
I always have had good luck with bachelor's buttons (cornflower). Very easy to grow from seed, prolific bloomers, good cut flowers. If you want just blues, rather than the more popular assortments, shop around for "Blue Boy." Love-in-a-mist is also a good choice if you want to start from seeds.
If you want to buy bedding plants, there are many choices, such as blue sage (salvia), which you can find anywhere, or lobelia or campanula. ... View related article.