To be fair, I know a significant amount of people who work multiple jobs but they only really put in a few hours on the weekend. They are the minority though, a

To be fair, I know a significant amount of people who work multiple jobs but they only really put in a few hours on the weekend. They are the minority though, and most 2 or 3 job workers I know do put in a significant >15 hours a week at each. I think the bigger thing beyond hours worked is commute and decompression time. I don't know anyone who, after working 6 hours on a Saturday, is ready right away to go out and have fun with their friends. Everyone wants to come home, change clothes if needed, and relax a bit before moving onto to something else. That extra hour or so, not even including the commute, is a pretty big hit to your weekend time.