When I'm doing labor-intensive tasks on my MacBook, like editing high-resolution photos or videos, it tends to overheat. One of the best ways to combat this problem is to allow air to flow underneath the unit to keep it cool. There are laptop accessories you can buy like elevated lap desks and fans, but they aren't very portable, and they can be pricey. My solution: two halves of a racquetball. Super cheap! Super portable!
Step 1: Gather your supplies
Step 2: Cut racquetball in half
Place the ball in the vice in such a position that you will be able to cut along the ball's seam. Tighten the vice until the ball is about half its original diameter. Begin cutting slowly until you break the surface of the ball, then cutting faster will be much easier. After you cut all the way through, wash the ball halves, inside and out, to get rid of the dust.
Step 3: You're done!
Now wasn't that easy? Place the racquetball halves under the upper-left and upper-right corners of your laptop. They should work like a charm! They fit easily in a laptop bag too!