Start an exercise program that doesn't cost anything. Even if you can't afford to join a gym or buy expensive home-training equipment, you can still get a great workout. Go down to your local school on the weekends and play basketball or run on the track. Even walking briskly through your neighborhood can give you decent cardio without spending a dime.
A great tip to build better abs is to make sure you don't work them out every single day. Your abs are like any other muscle in your body and can break down if worked too much so be sure and only incorporate them in your workout two to three times a week.
Train with a friend to add focus and dedication to your fitness plan. Friends can not only be supportive, but can also add a bit of competition if they're on a more advanced fitness level than you. To really help, take it a step farther and plan meals around a diet plan that you share with your friend.
You can work out and save money by doing chores like snow shoveling yourself rather than hiring a neighborhood kid to do it for you. Snow shoveling burns 400 calories an hour and is great power training, as well as saving a good $25/hour you'd have to pay someone.
A great fitness tip is to not push yourself too hard if you haven't lifted weights for a long time. You need to slowly introduce your body to weight lifting again. Going too hard after a long break will leave you feeling tremendously sore. Avoid the pain by following this advice.