Its true the points are getting harder to earn ,but if you go to certain websites, they will tell you how to accumulate extra points by signing up for email letters, special offers, etc. These websites include http://funtasia.net/mypoints.html and http://www.payyobillz.com/mypoints.html
I and other family members have accumulated over $700.00 worth of gas cards this year which we use on trips, especially handy now that gas prices have risen dramatically in the last half year. And don't forget to check every column in your profile page as this will get you more emails, which in turn give you more points to earn. Hope this helps earn you a few more points.