GroupOn Cleveland is running a deal for a relatively new ticket company- ScoreBig.com (expires in just over 1 day from this post). Since this is an online deal, it can be used anywhere in the US and is worth checking out. For $9, you’ll get $40 in credit to use on the site. The GroupOn does expire at the end of July 2013, but it could help you get cheap tickets to a few baseball games during the first half of the season!
ScoreBig.com has tickets discounted up to 60% for events, concerts, and of course sports! The best thing about this site- no fees!! I got tired of paying ridiculous processing fees at StubHub! and Ticketmaster, so this is a nice alternative to those sites (though the selection is much smaller).
Make sure you also like ScoreBig on Facebook for updates and more awesome deals in your area.