Tired of spilling coffee on your homework papers or laptop keyboard? Don't waste perfectly good napkins to stop the wobble. Stick a few of these cork discs in your backpack or pocket and use them to steady that shaky table.
Step 1: Save that cork
The next time you open a bottle of wine, save that cork. Or, raid your friends' jar o' corks -- you know, the one they say is holding the corks for their next homemade bulletin board project.