(This is related to "What hand and finger exercises help with climbing?" but asking for what can be done when not climbing/training.)
Like most climbers, I don't get to do as much as I'd like, and I rarely climb as well as I'd like, so I'm wondering if there are ways to squeeze training exercises in when I'm doing other things.
For example, if I'm carrying bags, I've started reducing the number of fingers I use, with a view to increasing the weight my fingers can support, and thus improve my ability when on small holds and pockets. (No idea how well that might work, but it demonstrates the type of things I mean).
Any types of improvement are welcome, though I am specifically looking at bouldering (free climbing), as opposed to roped/other climbing.