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.
sprinkle the inside of the bowl with baking soda then spray with vinegar. let the foam work for a few minutes then scrub with a toilet brush. then spray down the whole toilet with vinegar and wipe clean