Inbox Dollars sends 2-3 emails per day to the e-mail address you specify. I use a separate e-mail address just for my inbox dollar stuff and check it a couple times a week. All you have to do is click through to confirm reading the emails and your account is credited. Advertisers pay to have their product shown and Inbox Dollars sends some of that money onto you.
You will not get rich by completing these offers, but it can provide a few extra dollars to do something fun with. After all, it's easier to stick to a budget when you have extra money to have fun with. Sign-up today and you'll start with $5 in your account.