If you're an online sportsbettor and you've only got one account at one sportsbook you're really cutting yourself short. Not only can multiple accounts earn you more bonuses, but they can also provide you with different odds which can mean smarter bets. If you don't believe us just take a look a few examples of current lines for Week 1 in the NFL.

Let's start with the Week 1 clash between Pittsburgh and Baltimore because that one is really all over the map at different books. All the books we prefer have the Ravens as the favorite, but they are not all giving the Ravens the same line. At Bodog right now the Ravens are a 3-point favorite, but at 5Dimes they have only listed the Ravens as a 1-point chalk. You'll find another different line at Bet365 where the Ravens are favored by 2.5 points. So, if Baltimore were to win by a field goal you would win at 5Dimes and Bet365, but you'd have to settle for a Push on the same game at Bodog.

Finding a big discrepancy like that is pretty rare actually, but it is very common to find a half point difference at different books on the same game. Even something as small as a half point can make a big difference though. Take the Week 1 matchup between Cincinnati and Cleveland for example. At Bodog the Browns are a 7-point favorite, while they're are a 6.5-point chalk at Bet365. If the Browns were to win by 7 points it would mean money at Bet365, but a Push at Bodog.

If you wound up with an unfavorable line numerous time one week when you could have found a winning line at another book you're sabotaging yourself. Missing out on a few wins each week of the season will really add up on money missing from your bankroll at season's end. Be smart a sign up at a few different books to make sure you're always getting the best line possible.