The rules are at least a little bit different at each different sportsbook, and those seemingly small differences can make a big impact on the bottom line if you aren't aware of them. One reason why bettors don't always embrace them is the confusion over teaser betting rules.

In the right situations, though, they can be both profitable and a lot of fun. Teasers aren't the first tool that most serious bettors look at to make a profit.