+1 for the Thermacell. Insects are surprisingly worse at home than in the tropics, so we use a Thermocell at both locations. The only time we still use the spray is when we are in Costa Rica at sunset, when the insects are in full force and the Thermocell is not effective when walking on the beach. But it's great for the backyard, and we have a ceiling fan in our back patio (air movement is good for keeping bugs away).
"It's only castles burning." -- Neil Young
