If you want to have a little fun, you can make you own Sunshade. I made one today, and it came out pretty well. It only took me a few minutes.
Here is what you'll need:
Heavy Duty Aluminum Foil
Cardboard or Cardboard Box
I'd measure your windshield and see how big a piece of Cardboard you might need in your car. I just cut a section of an old moving box we had in the basement.
Stretch the Aluminum Foil over the cardboard. The Aluminum Foil fit well over the piece of cardboard box I cut. Remember to have the Shinier side facing outward, since it will be more effective. If your piece is large, try to cut and position the Foil to cover the spare areas.
Use the Duck Tape and tape up the back. I'd also suggest back-taping the flat areas of the Aluminum Foil.
Put it in your Car!
I'd suggest using Heavy Duty Aluminum Foil, because the normal type will most likely ripe. Also, if you don't already have these materials lying around, it's probably better to just buy a Sunshade. Of course, I had a lot of fun making mine! These pictures should help you make your own DIY Sunshade.
Since it's Summer I'm sure you've experienced getting into your hot car, when it's been sitting out in the sun all day. Well there's a simple solution to this … Sunshades.
Sunshades are something I bet you've seen in lots of other peoples cars. I'm sure in a store you've considered getting one. Sunshades are worth the money during the brutal parts of Summer. They keep your car much cooler. I wouldn't say the claimed “44 degrees” on sunshades labels is accurate. It's definitely at least 10 degrees, probably more. That doesn't seem like a lot, but that's the difference between being unbearable in your car and warm. They help not only reflect sunlight out, but give the car shade.
If you want to buy one for your car they are available in all sorts of big-box stores, convenience stores. and auto parts stores. They sell for about $10. I wouldn't buy a Sunshade at those stores though! They are available at Dollar Stores, and usually sell for about $3.
Below are Sunshades we've had for years. They've lasted a long time, and work well. I personally prefer these Panel Sunshades, to those Fold-Up Accordion type. The Panels can fit easily under a seat.