[mgrat]

Take a sabbatical if you can afford it and do random things. I'm in the US, so some of the things I've done - spent months through-hiking the Appalachian Trail, cave diving, camping, whitewater kayaking up and down the east coast. I needed another output and to put something besides work first. Work will always be there, and when I returned I found just working with other people more pleasant/rewarding.