When I travel with my magic show, I put colorful zip ties on my show case. The reason is that when I pick up my cases at baggage claim, if my zip ties aren’t on the case, then I know I need to check them.
Recently I flew and when I got my bags my zip ties had been replaced and inside my case was the TSA letter.

This tells me that when I get to the hotel I need to do inventory on my show to make sure that everything made it back into the case.
In the past I’ve had my checked baggage screened by TSA and the forgot to put my two table tops back into my case! It was an ordeal tracking them down and getting them back.
Knowing something is missing before I start setting up the show is a huge help!
-Louie