I love you qualifier, "legally." I don't know what "a lot" might be in this situation. Profound skills have value are, on the outside, a great way to make a lot of money fast, but limited in who has them. IF you are not a salesperson, finding difficult manual jobs that you are more willing to do than the other person, can be a great way. There are, for example, more jobs than people for them in North Dakota right now, but the work is strenuous and very physical, but the pay is well above normal. If all these are out, that is maybe you just aren't rough and tough, but you are willing to work at it and have a clean record and can get some references, cleaning houses and businesses can pay off handsomely and you can usually start today. If you are a salesperson, find the most expensive capital equipment in the area and tell the sales manager he's screwing up not hiring you to sell it for him - or sell something on full commission and sell a whole lot of it. Selling is very tough, takes a very special person to be good, but is the least physical but most mentally demanding way to fill your pockets.