Seat Sacks to help clean off the table and keep all the kids stuff together. tutorial, and if you don't have time, the poster will be selling these too. I think I would use a stiffener for the top section of the 'sack' - boning, or stiff interfacing
DIY Tutorial - cut PVC Pipe the height of your drawer to store scarves, belts and ties rolled up inside - clever and so inexpensive! Can be used for organizing many more items around the house. nest different sized pipe
If you want an easy, cheap way to organize -- try binder clips! Not kidding -- they are easy to change by using paint or washi tape and come in all kinds of sizes! I've found 11 ways to use them to organize!