Coupons or full price?

I rarely buy anything at full price. What can I say... I'm very frugal. With the new hype of couponing out there, makes me wonder if it is worth all the time spent in clipping coupons? Anyone out there with couponing stories? I am a infrequent coupon user. I do it when I remember. I dont price match at walmart and dont stock up when something is on sale (mainly because I dont have much storage space!) However, IF it is worth my time, I will be buying my Sunday papers like hotcakes for those coupons. Here are some websites I like to read from time to time for ideas.

www.mylitter.com (I also liked the facebook page and get notice on deals. There are a lot daily, so if you dont want this populating most of your facebook news feed during the day, you may not want to do it!)

www.iheartthemart.com is also a good one on tips of the wally world. If you shop there frequently, you might want to know the tricks on how to get the best deal there!