You can watch the mini budgeting video above if you want to, or read the summary here.
Next time you check your bank balance(s), round your total down to the nearest $10 and move the difference into savings. I did this and saved $4.95. I know that isn't much, but that's also the benefit of it. Without even needing to think about it, I was able to add almost $5 to my emergency fund.
How much can you save painlessly?