One downside with Inbox Dollars is that you will get a TON of offers. Be sure you have your separate email set up just for surveys for this one. Some of them can be a bit on the spammy side and you will definitely get paid. Note that Inbox Dollars does offer you compensation for trying paid offers as well which can be a turn off for many. If you do sign up for one of these be sure to cancel after you sign up unless you like the service of course. We recommend just sticking to the free stuff to avoid potential problems.