What is the most efficient way to obtain a six-pack?
First you need to loose the fat, start doing cardio and eating small meals through out the day, every 2 to 3 hours. Then you can start doing core exercises, crunches and sit ups won't help you show your abs unless the layer of fat is gone.
Run to the store and take some money with you.
work ur upper body out at the gym
Crunches. It's fast and effective
gym and healthy eating.
Start running or biking.