Quote:
"a trash bag inside is good, but they generally don't last real long."

Contractor bag, the heavier mil ones you can get at a hardware store === a bit heavier, but will last a long, long time with moderate care.

Quote:
"It really peaves me that they use too thin of material in tent floors to save weight, then sell you a footprint to protect that floor and don't add the weight to the weight of the tent".

Have you literally worn through a tent floor?
I like to use a polycro homemade ~footprint, but it's more about keeping the tent cleaner & drier, as an extra barrier when sleeping on wet ground or snow, and as something to sleep on for nights that I want to cowboy camp. I think it rarely matters though, wouldn't carry it if it weren't so light & small.
_________________________
Brian Lewis
http://postholer.com/brianle