This tip helps you get craft projects out of the way while you are not working on them. Put all the patterns and other supplies for a craft project in a plastic grocery bag with handles.
Plastic CD-Rom containers with the spindle are wonderful for keeping your knitting projects clean, untangled, and safe from kitty paws! Many of the spindles screw right off the lid, leaving a nice smooth hole for your yarn to come through.
I do a lot of cross-stitching and to organize projects in progress I put threads in snack-size plastic bags. Then I use an old eyeglass case to hold scissors and needles. I use a large ziplock bag for the hoop, thread, and material.