Here's a list of current codes that I found today. They were all current as of today, but please let me know if any of them are expired so I can remove them.
TWITTERDIPEWIPE only good today-worth 5 pts
FXHMWY4WKHU47JD worth 10 pts
WELCOMEGTGPTS10 worth 10 pts
|GTGREWARDS4MOMS||worth 10 pts|
CONGRATS2NEWMOM worth 10 pts
GTGWELCOME10PTS worth 10 pts
PAMPERSGTG10PTS worth 10 pts
2BEGINEARNING50 worth 50 pts
JOINNOW4REWARDS worth 50 pts
Some of the current rewards include Shutterfly prints, various sweepstakes, giftcards, book, magazine, puzzles, etc. They also update the rewards frequently, so check back often!