Here's a quick tip I use, you have to be quite disciplined but trust me it will pay off! When in Early Position (i.e next to the blinds) only play the following hands:-
Paired - Aces, Kings, Queens, Jacks, Tens, Nines, Eights
Suited - Ace King, Ace Ten, King Queen, King Jack, Queen Jack
Unsuited - Ace King, Ace Queen
Your probably asking Why? Well if you call the blind with only these hands in Early position it means that if someone in Mid or Late position makes a hand and raises then you can confidently call his raise or even re raise without having to fold and loose your Blind! Simple but very affective!
When playing from Mid position you can afford to play slightly looser and I would recommend only playing the following hands
Paired - Sevens, Sixes, Five
Suited - Ace Nine, King Ten, Queen Ten, Jack Ten, Ten Nine, Nine Eight
Unsuited - Ace Jack, Ace Ten, King Queen, King Jack
This reason you can play slightly looser is because you get to see what the Early Position player have played which will indicate what you can do with you hand.
When playing from Late position you can a lot looser and I would recommend you play the following hands from this position
Paired - Fours, Threes, Twos
Suited - Ace Eight, Ace Two, King Nine, King Eight, Queen Nine, Jack Nine, Ten Eight, Eight Seven, Seven Six, Six Five, Five Four
Unsuited - Ace Nine, King Ten, Queen Jack, Queen Ten, Jack Ten, Ten Nine
You can play these hands again because you get to see what nearly every one your opponents has done with there hand and if you read my Article on "Tells" you should be able to pick up on who has a good hand and who is bluffing!