Lol! This thread is cracking me up! There are hundreds of ways you can get a flame without a lighter. But here's the easiest:

1) Walk/drive to closest gas station
2) Pay for small lighter (less than a dollar)
3) Walk/drive back home
4) Pack a tight bowl of your best weed
5) Light that shit
6) Inhale deeply

Repeat steps 5 and 6 as necessary until you can't even remember your name.