Thank you for all the really good advice. This is definitely the tips I was looking for.
With putting them in the shirt--is there a good way to do this so that it doesn't irritate your skin too much? That's another thing I have been trying to figure out. I definitely want the guys to be able to stay in my shirt, but their claws really do irritate my skin, and sometimes really hurt. Any advice on this? Also, thank you for the trick about picking them up. It'll take practice to get them to go on me, but this sounds way better.
The fleece tip is a good idea. I'm remembering now seeing someone do that. Practicing them being against me that way sounds like will be a good idea. I've been having my guys sleep in a blanket in their cage, that way they're already curled up in it when I open their cage, and I can just pick them up in their blanket. It's worked pretty well. But I'll try more with them being against my body.
And yes, we do bathroom time with them. That's been good, but they pretty much forget us and run off somewhere, haha. Trying to figure out how to get them to stick around. They like to climb on us, so that's good. Making progress at least. But if we even move they're off somewhere away from us, haha.