There are some natural mosquito repellents that you can make from items you most likely already have in your house. For whatever reason, we have lots and lots of mosquito around our house. My girlfriend went online and found a recipe for a natural mosquito repellent/trap. She took an empty plastic drink bottle, cut off the top and then filled it with some type of bait that attracted the mosquitoes.
I don't remember exactly how she built it. Initially, we tried the trap outside, but there were so many mosquitoes that we were still bitten quite a bit, but we have been using it inside and it works well to capture the few stray mosquitoes that get into the house.