I've not been terribly productive lately because I've been experiencing a carpal tunnel flare-up. I'm very careful that I don't cause myself more injury through improper tool usage. I have old injuries that are unrelated to metalsmithing and an occasional bad habit of sleeping with my wrists curled in like I'm comatose. When I wake up with numbness, I know that I need to start wearing my wrist braces at night.
I'm a stickler on reminding everyone to let hammers do the work. Bill Fretz hammers are my favorite because I love the shapes of the handles and how they are weighted. Annealing your metal will save your tools and your wrists and on projects that require a lot hammering, it will keep your metal from cracking or splitting from over work hardening. So, be sure to re-anneal as necessary while you're working.
So, take care of those precious wrists!