I have made a little search and found this interesting article with up to 29 steps as a guide:

http://www.wikihow.com/Make-a-Long-Distance-Relationship-Work

Long distance relationships are definitely risky, and if you are unfortunate enough to be far away from your significant other, the prospect of potentially ruining your relationship can seem daunting. Just because long distance relationships are difficult, doesn't mean they're impossible. Simple adjustments to your attitude and lifestyle can help you keep your loved one in your life.

Hope it could help to everyone

Thanks

Sal