How To: Score Big with Simple 2-Letter Words in Scrabble
No matter what word game you're playing, whether it's Scrabble or one of its near-homogeneous counterparts like Lexulous, Wordfeud or Words with Friends, one of the easiest ways to stay on top of your opponent is knowing all of the legal two-letter words you can play. You're not going to win by only playing two-letter words, but there are definitely occasions when the game could slip from your hands by not playing them.