Last year, I made a bed in my Toyota Rav 4 for car camping.

YuKonstruct's Van Slam gave me me plenty of ideas on how to improve my car-camping style.

This simple project is a bug screen for your window, so that you can sleep inside with fresh air and be free from bugs!

Step 1: Materials and Tools

All you need is:

Window screen - purchase at your local hardware store. I got a fairly hardy variety so that it could withstand the abuse of a car door being closed on it repeatedly and so that I wouldn't have to finish the raw edge at the bottom.
Strong magnets
Sewing machine and strong thread
Needle for some hand sewing

Step 2: Measure

Your window screen needs to be customized to fit over your door. I brought my screen out to my car and measured and cut to shape right there.

Fold the screen material in half and place over the car door - fold at the top.
Cut the bottom of the screen to length - you will want the screen to go beneath the window to reach the metal door frame, but not hang down much more than that.
Hold the two halves together and cut the screen to fit the angle of your car door, leaving about 2 inches overhang on either side.

Sew one of the sides of your bug screen together.
I recommend folding the screening over twice to make your seam - this uses up about an inch of your overhang allowance, which is perfect.
Go back out to your car and put the screen on to check if your measurements are OK. Adjust if necessary.
Sew the 2nd side together.
I left the bottom edges without sewing them. If you have flimsier netting than me, you may want to finish the edge all the way around.

The magnets hold the bottom edge of your window screen onto your car, sealing the edge so that the bugs can't get it.
I sewed magnets all along the outside bottom edge so that there was about 3 inches between each one. I did not sew magnets into the edge that is inside the car.
Make a pocket out of some of the spare netting and place the magnet inside.
Handsew around the magnet (you could potentially use a sewing machine here - but my magnet was sticking to the foot pedal and it wasn't worth the effort!)

Slip your window screen over your car door and spread the magnets out so that there is good contact with the metal door frame.
Close your door, open your window and enjoy the breeze without bugs!