In many ways the nice thing about a TLR (except perhaps the Mamiya C) is that you don't get tempted to carry a lot of extra bits. My closeup lens set, a couple of filters, and a lens hood live in cases on the camera strap. Add film and a lightmeter and I'm off. No need to debate about needing a long or wide lens.
I do agree with this. It is the same with my folding cameras as well, and it is a very nice feeling.