So, I've never had great posture, though it's something I've been trying to improve. This comes especially to mind whenever I'm packing it in at the end of a full days painting session. I don't know if there is a way to sit in one spot for 7-9 hours a day (or more) and not have your back feel like its fused into one piece, but I'd like to know if anybody knows of one. I try to get up and stretch now and then which helps, though I've never been able to crack my back and many many days I wish I could. Just something that worries me a little. If I'm starting to feel back tension at 24, I don't want to think where it can go in 30 or 40 years.