There are a few things you can do daily to get bucks.
Every morning, I sign in and do the daily poll (one buck), NOSO (no obligation offers, just hit 'skip' on each one and enter the code at the end, when prompted -- it's worth 2 bucks now, used to be one), visit the survey page (worth one buck just for the visit) and I refresh the toolbar, I don't even search (worth one buck when it works, but it doesn't always.)
Other easy things to do -- keep your eyes on the main page for videos that say bonus bucks. There was one there this morning, but it's gone now. As for searching, I search about five times a daily when I'm online, spread out throughout the day/night. I will do a few searches in a row if necessary, anywhere from three to five, and I usually get bucks three times a day. I really think that's the max they'll do it, just three times daily, and you have to spread out the searches. And if you over search, the software will sense it.