Build these handy undersink roll-out trays in a weekend. You can tackle this project with simple carpentry tools and some careful measuring. You can make all the trays in an afternoon using building products from your local home center or hardware store
(This might work for craft supplies as well) PEG BOARD SLIDES. Running out of wall space? Use peg board slides to store your tools vertically under the counter. These slides would work in kitchen base cabs.