I'm usually pretty good about making a budget with my regular income sources and sticking to it but I've never sat down to account for all the little bits of money that happen to come my way from other sources.
Based on my activities over the past few years and some new stuff I have recently begun, here's what I can reasonably expect over the year:
Credit card cash back: $100
(for living expense purchases I would make anyway)
(just for clicking emails, no shopping. I will get this in the form of a gift card to a store I regularly shop at for living expenses)
Inbox Dollars (referral link): $50
(just for clicking emails, no shopping; you can get $5 just for signing up)
Bond Rewards: $100
(online shopping for some of my living expenses- but this money is in the form of US savings bonds that will mature at a later date)
ING savings account interest: $150
(after accounting for taxes and even if I end up spending some of my emergency fund )
Health Insurance Rebate for Gym Membership : $300
I would maintain my gym membership regardless of the rebate, so this really is a bonus.
Property Tax Rebate: $250
That's an extra $1000 over the year. Not too shabby!