CherokeeDriver,
If you have found a way of always flying with full tanks, do tell. We Yak pilots would be especially grateful for help in this regard as our tanks go from "full" to "empty" in as little as an hour or two, but I am sure operators of other types would also welcome the range improvements and reduction in hourly cost.
Seriously, if full tanks help your landings it is probably because you are flying at an approach speed based on max gross weight and not factoring it appropriately for the weight you are actually flying at when you make the approach., This causes a lot of PA-28s to float a few hundred metres along the runway, especially if it is a bit downhill.