I'm trying to lose some weight for the upcoming beach season. What ways are there to stay on track and to not veer off the path.

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I keep a small notebook and write down everything I eat.
I also keep a running total of the calories.
If you gotta write it down you are less likely to snack.
I have lost 21 lbs in 7 weeks this way.
hope this helps

beat way is to have a diet and excercise buddy.

You could set some goals, and then every time you fail to meet one of them you send me $100. This sounds crazy, but it's cheaper than a personal trainer. I'm your new personal trainer, and if you meet your goals you owe me nothing!