Eating Meat on Fridays

I have often wondered what people are taught now days about eating meat on Fridays. My husband and I don't eat meat on Friday all year long. I had been taught that if you chose to eat meat on Fridays then you must give up something else. Unless you have some sort of addiction to something, I don't see how giving something else up would benefit. Remembering not to eat meat is great effort and shows discipline and control. I love potatoes, and I thought I could use that as a replacement but I go a day or two without potatoes all of the time, it would not be that great of an effort/sacrifice. What is so wrong with making a small sacrifice for the BIG Sacrifice He made on Good Friday??

I did some searching and found this link about the topic.

http://www.catholic-pages.com/life/fridaymeat.asp