I don't have an extensive stash, but yesterday I started working on a Snake Log Cabin, and pulled about 20 to 30 pieces off my shelves that will work perfectly.
As for what to do with the left overs after you are GONE! My children are starting to worry. They don't want to deal with it. When a member of our quilt club dies, we have lots of stuff donated, but sometimes don't know what to do with the started projects. I'm starting to keep the fabrics and pattern for each project in a pizza box. This is for me as well as for those left behind. Even used pizza boxes work if they aren't too messy. I just wipe them off as best I can and cover the bottom with freezer paper. They stack nicely on a shelf and are labeled so that I know what is in them.