Tighter Abs Without Crunches
Laughing: Remember the last time you laughed yourself silent? You couldn't take a breath and the tears were running down your face. They don't call it a belly laugh for nothing. That ache you felt in your sides was your abdominals getting a workout as good as any Pilates session. Call the friend who always cracks you up or put on the funniest movie you know of. Another nice side effect is that laughing boosts your immune system and increases your life span, giving you more time to admire those washboard abs.
Sex: Yes, really. Without going in to the intimate details, the movements involved in even the tamest rendezvous will tighten and tone your abs more effectively than crunches. Much like dancing, it is controlled movement that will reap great results. Again, think sensual, not electrified. This is also a great multitasking exercise, especially if you and your partner have been promising each other you will get fit.
One last trick that -- unlike the others -- you can do anywhere. When you are sitting, tense your abdominals and imagine you are trying to fold your belly button in half. Squeeze slowly and release slowly. A few of these when you are watching TV or sitting at your desk and you will never have to experience the pain of another crunch again.