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.
The One Lifestyle Change that Allowed me to be a Stay at Home Mom
My hubby and i started doing this with one dollar bills when we got married-- after about a year, i [just me] had several hundred dollars and got to enjoy a great birthday vacation and still have lots left over :) Great Idea To Save Money