Mike,
You are correct. The only place for cash is the elastic band.
I have pared down what I bring with me. I used to have a really fat wallet with every card I own. Now I am more selective.
I usually only write product reviews on this forum that are related to Home Theater gear. Once in a while a company will contact me and ask if I am interested in looking at something they are offering. If I find the said product to be unique and of possible interest to readers of this forum...