Even if you did have a "washboard stomach" (hate that phrase), how would a girl know you had it?
If you just showed it her or set it as your MSN display picture then that's just vain.
To get a "washboard stomach" you need to get down to less than about 8% body fat and have done lots of abdominal exercises (i.e. situps, hanging hip raises, etc.).
Also, I wouldn't bother doing 1,000 situps daily either, it makes me laugh when people tell me their workout routine:
- 50 Press Ups
- 50 Sit Ups
- 50 Curls
*sigh*
You should do weighted hanging hip raises if normal hanging hip raises are too easy (i.e. if you can do more than 3 sets of 8 reps).
However, hanging hip raises and sit-ups will only do the top 4 sections of your abs, to train the lower two sections of your abs you must do some sort of exercise which involves rotation around the hips sort of. The classic one is just normal situps but when your torso is perpendicular to the floor you should reach to one of your sides with both your arms (say, your right side) and alternate sides per rep (i.e. reach to your left side on the next rep).
Seriously though, I doubt females care for how our bodies look (to an extent) much compared to how much males care for how their bodies look.