If you log into Xbox.com and sign up for the XboxLive Rewards Program, you can do a survey each month that nets you 20 MSP. I'm not sure how long it takes to actually get the points though. --- XBL Gamertag : JerseyMentality
Xbox rewards is the only way I know to get a small amount of points easy, but takes a couple months to get. The only other thing is bing rewards. If u do your searches daily u can redeem 100 ms points within a week.