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
Good idea for reach-in closets! Put up closet rods on the sides if you tend to have access issues. I just did this to my own closet today. I also raised the regular bar by a foot to maximize vertical space!