Pretty much every NBA bettor is looking for a way to win more money. And the common advice is to keep up on injury reports, study in-depth stats, consider key matchups and focus on one or two divisions.

But while all of this is certainly good NBA betting strategy, some people are looking for a shortcut...a way to cut down on the amount of time it takes to make winning picks. And for these bettors, systems are often a very attractive prospect.

Some NBA betting systems involve looking across the league in search of one key aspect. For example, a certain strategy may call on players to only bet on home favorites who are coming off of two straight losses. Other systems can require more complicated mathematics that are supposedly guaranteed to work.

In either case, it's worth looking at a few simple examples of NBA betting strategies, discuss if you should ever pay for a system, and talk about the overall effectiveness of these strategies.

High Totals System

About.com sports betting authority Allen Moody came up with this system, which is quite simple to learn. With High Totals, you need to find non-conference games where the over/under is 220 points or higher; then you bet the over. Sound too good to be true? Well Moody says that this system went 31-18 (63.5%) from 2004-05 to 2008-09.

The Martingale

Widely used in casino games, the Martingale is also used by sports bettors because of its simplicity and perceived success rate. The main idea behind the Martingale is that you're doubling wagers every time you lose. But after each win, you return to the original wager amount.

For example, if you were to bet $11 to win $10 and lose, you'd double your next wager to $22. Assuming you also lose this one, your next bet would be worth $44. If you won the $44 bet, you'd return to the $11 wager with a profit of $7 ($40 - $22 - $11 = $7). In theory, this is a profitable long-term system; however, if you were to go on a lengthy losing streak, it would devastate your bankroll.

Betting Against Favorites after Blowout Wins System

Okay, so there's no pretty name for this system, but it's worth covering nonetheless. You start by searching for home favorites that are favored by 10 points or more in the spread. From here, you look to see if they won their last game by 15 points or more. Assuming the team blew their opponent out by 15 points or more, you bet on the underdog.

According to SportsInsights, home favorites of 10 points or move who are coming off 15-plus point wins are just 110-149 (42.5%) against the spread since 2003. Anybody who would've bet the underdog every time in these situations would have had an excellent 57.5% win rate.