The FIRST thing to do is check inventory. I put my hardware into the slider bins after labeling them with the part numbers. I put the rivets into empty plastic water bottles.
So far, in the 3,000+ hours and 4 years I've been building my slow-build RV-3B, I haven't had a single problem with this system. I've dropped the rivet bottles a couple times but never lost a rivet.
There are other successful storage systems described in the archives.
Incidentally, reducing the pixel size to 800 pixels wide makes the thread a lot easier to read.