My life-long consistent hobby has been collecting hobbies. Learning how to do new things is a high for me. I can't stop! I get interested in something, fixate on it for a while, learn everything I can, then add it to my toolbox, and move onto the next thing. 

After a few decades, I've racked up quite a list of skills. I could talk your ear off, literally for hours, about any of these. Tread carefully. This is a small sample.