Wiki, if you can work out a few hours to be with the critters, I really recommend it. For me, volunteering in wildlife rehab is what regenerates me for the rest of the week. It's a few hours every week where I'm taken completely out of myself. It's a very mindful time for me - I have to be completely present when working with animals or someone (the animal, other workers or I) could get hurt. Plus, they're just fun to be present around! And most of the people who give their time to animals are fun to be around, too. I've met some of the most wonderful people I know doing wildlife work.