The Envelope System--for budgeting your paychecks and staying on budget. This was actually how I saved up $630 for a computer and $350 for a new aquarium at the same time... then I stopped doing it. Maybe I should start again.
If you go to school for years and take on a pile of debt to pay for that degree, you might get a six-figure job. But there are many other ways to make $100,000 than by depending on a salary. Here are a few profitable business ideas and investment options. @thepennyhoarder