Warehouse work - working for smaller trucking companies, loading/unloading trucks and preparing shipments. Pays around $18/hr starting out.
Retail - Retail sucks if you hate what you're selling, otherwise it's not too bad. I worked in a supermarket and hated it, but a friend worked for a car parts store and absolutely loved it.
Delivery Driver - Friend who worked at car parts store switched to a driver after awhile and liked that even more. Load up the car and head out, get people to sign off and sometimes collect payments. I always thought I'd like this style job, mostly because it's so independent.
Computer repair/freelance IT work - Most people would give this a big "hell no", in high school I worked for a bunch of small companies and made $25/hr cleaning off viruses/repairing machines/building new PCs. I'd usually go into a place for 3-4hrs on weekends. If you don't hate it, you can make some decent money.
If you're fairly comfortable with computer hardware and windows, you'll get by fairly easily. For all other problems: google. The IT jobs also lead to more side work, typically the companies I worked for didn't have websites. I worked out deals with friends who were designers and asked for a finders fee for referrals I sent. (Knowing what I do now, I would've taken on the work myself at a higher rate for web development and just outsource most of it)