When you're lighting a fire, there is actually a way to get double LP for lighting it.
Basically the way I've found (and have repeated it to make sure it wasn't just lag):
1) Click Light My Fire
2) While the fire is lighting, with the little hourglass filling up, reclick the fire so the Light My Fire button comes up, but do not click it.
3) After the fire is lit, click the Light My Fire button. The fire should re-light itself, even though it's already lit, and you will gain double LP for lighting it twice.
I uploaded a video as well, demonstrating the repeatability.

http://www.megavideo.com/?v=614UYITP
So yep, just thought I'd report it. If it was reported already, my mistake

Thanks!