25 year reunion here I come

My 25th class reunion is on March 5th, so I have kicked my diet and exercise in high gear. My most problematic area is my belly. I currently weighs 180lbs, but no one believes me - they think I weigh much less. Now my waist is 41 1/2. I know how to hide my problem area (e.g. no white T-shirts, no blouses tucked in, and shirts w/ elastic at the bottom). However, every once in a while, I am knocked back to reality when someone asks, "How many months are you?" Ewwww.....I'm not pregnant. Oh well. I did an internet search and it told me the best five ab exercises and I do them every morning and night additional, I try to get in at least an hour of cardio a day. I do this by walking on my lunch break and I park far from my office, so I can get some exercise walking to and from my car. Also, I have an exercise bike at home. I want to lose at least 1 inch from my waist and 10lbs by March 5th. Oh well, enough about me. Wish me luck!