The year before I started college I worked 2 jobs:
The first one was stocking shelves overnight (Midnight to 8:00 a.m.) at a local supermarket; and the second one was working as a sales associate at a local bargan department store (from 2 in the afternoon to 11:00 p.m.)
Basically I was putting in 80+ hour workweeks, getting maybe 4 hours of sleep a day, and hibernating on my days off.
I think I managed to keep that up for about 8 months before it got to be too much. I had no other life at the time... but my bank account sure looked a lot better afterwards.
Native XWA.Netter (Nutter?)