I lost a rotary cutter in my sewing room about 10 years ago ... still has not shown up. I loose a ruler almost daily .. now I have a few , and a rule to not "close -up for the night" with out tidying up a bit... at least put the rulers back to where they belong..... and the sissors..... and the rotary cutters..... and the seam rippers.... and..pin cushions and empty the trash.
I have a carpenters type apron that I put on when I am in a production mode. So I can keep some of my most used tools in the pockets and close at hand.