You can clean the grill, they sell wire brushes to do it. There are also chemical cleaners but I've found the brush does a good job, especially when you do it when the grill is hot. Don't put tinfoil down, that sort of detracts from the whole reason you grill in the first place, and the fat doesn't drop off that way either. www.amazon.com/How-Grill-Illustrated-Techn
This book would probably be a good place to start.
Also, if you can, don't use lighter fluid. Get yourself a charcoal chimney to get the fire started. Lighter fluid is all chemically and you don't want that in your food. Here's some info on chimneys: www.virtualweberbullet.com/chimney.html
> There's probably tons of youtube instructional videos too.