Took the family for our first camping trip of 2012 this week. We had a blast other than the mosquito bites. We have always used the OFF and Deet type sprays. Unless coated in it at all times, they still swarm. Anyone tried the thermocell type? I was told they don't work very well at high altitudes. We live at 7000 and camp higher than that. I can deal with them and don't mind being doused in spray, but my little guy sure got bit up this trip. We kept a good eye on him and sprayed often but still got bit. Thanks for any suggestions!