1. Get Motivated & Plum Mad Dog Mean!
Without motivation and this indomitable will get a six pack, you won't get there. The primary factor is whether you want to get it enough - enough to push through the setbacks and time it takes to get it.
2. Tell People What You're Shooting For
Yes, tell people! Friends, family, neighbors, countrymen, boyfriends, girlfriends!
This will help you in several ways.
First, you'll have added motivation to live up-to what you told others you're doing. And if you lapse, there will be people to get on your case - which will only help if you're really dedicated to this.
Also, you'll have people to praise you and be envious at your progress. Don't enjoy praise too much (it can be manipulative), but it certainly helps to have people telling you how much progress you've made. I know I enjoy praise!
3. Use The Power Of The 'Holy Trinity': Lifting & Ab Work, Cardio, & Diet
With these three on your side you can't get too far wrong. Any one of them will individually help you get a six pack, but all together they work wonders.
Without these, even if you follow the rest of these six pack abs tips you won't make progress. Integrate each of them into your battle plan for ripped abs.