Live where it's hilly. The earth itself obstructs signals like nothing else can. which is why they keep putting more up I am not happy to say.... but... There are places around here where you can get a great signal on one side of a hill but cross it and your phone goes dead. Those little valleys are signal free and probably will remain that way because they won't put up a mast or tower to service 10 people here and there.

maybe there is a reason castles are built of stone too. You'll notice it's harder to get good a signal on your cell phone inside stuctures that are built of stone, cement and stuff like that.

I guess shopping for living space these days include taking a cell phone along to see if you get a signal.

seems to me like any paint that inhibit signals must have to have lead or something similar in it.