I've chased parts all over my modeling area at one time or another , found some ? , lost some ? , but now I have an apron , like they used to wear in the grocery store , tacked to my bench , along the bottom edge , and whenever I start a modeling session , I slip the top over my head and it catches 90% of the pieces that decide to leave the area . Saves me from having to crawl around on the floor looking for that one piece that puts a halt to the build . ?