Putting on music that makes you feel really happy and makes you feel like, "YEAH!" (for me it's usually the Red Hot Chili Peppers song "Can't Stop" or the song "Butterfly" by Crazy Town) and jumping on the bed and/or hula hooping in my room.
Going to an open mic night at a local coffee shop and either just watching, or participating. Seeing other people put themselves out there makes me feel more courageous and more part of a community.
Doing any kind of creative project that involves making things (jewelry-making was a great suggestion. I love making hemp bracelets). It feel so empowering to finish and be like, I MADE THIS! I didn't have to buy it--I can do things for myself. (DIY !)