Get a Fit Upper Body Without a Gym

Can't afford to or don't want to go to a gym? Want those great chest muscles or fit biceps? Want a bikini belly by summer? Look no further!

Steps

Pick an exercise that will be your main focus. Think about what you would enjoy - the best exercises will be ones that you will enjoy doing, as that will motivate you and keep you focused. If you love water and birding, and there's a river or lake nearby, take up kayaking or canoeing. If your yard could really stand some weeding, garden. Remember that it doesn't have to be what most people consider exercise - pulling weeds is just as good as lifting weights.
Set yourself goals. These can be short term - kayak for an hour every other day, or finish weeding the side flower bed - or long term - take a week long kayaking camping trip, or turn your backyard into a tea garden for social events.
Set physical goals as well, such as dropping 8 pounds of stomach fat this month, or building firm biceps.
Start small and work your way up. You can start with 10 minutes every other day, and slowly build up to an hour a day, then two. Remember not to push yourself!
Stay focused. If you've resolved to work out an hour every day, do it. Don't let anything stop you.

Remember to work out your lower body, too. You don't want a fit upper body and a weak lower body!
Eat healthy as well! No amount of exercise will keep you fit if your diet is unhealthy.
Keep up a healthy self-image.

Don't get dehydrated. Keep a full water bottle or two on hand. If it's a hot day, you can stick the bottles in the freezer overnight, and the water will slowly melt and stay cool throughout the day.
Don't overwork yourself. If it starts to hurt, stop. Take frequent breaks.