I was sore all day today and it made me so happy! I remember joining an expensive group fitness program a few years ago and I was never sore. It was too late to get out of my contract and I felt so frustrated because the workouts were not challenging my body at all.
Sometimes you really do know what is best for your body. I found a gym program that only costs me $5 a YEAR and with the help of a fitness coach, I am feeling sore which means my body is getting ready for the summer.
If you have a community center in your area, check out their fitness programs. They are generally much cheaper and have the same equipment as a regular gym.