I also have my stash in 2 five shelf bookcases & I sort them alphabetically by color with the exception of kid prints, Christmas, holiday & floral. On the bottom shelves are my 3-ring binders with patterns & books. My scraps are kept in plastic bags by color within 2 plastic tubs so if I need a scrap of a certain color I can go to that bin & pull out the bag with the color I want. I'm a very organized person so it helps. As they say (whoever they are) "Organized people are just too lazy to get up & look for it". Being organized does cut down on the time spent looking for a particular color. Have fun.
Mary C