I stumbled upon the Misto Oil Sprayer lovely idea at Costco a few weeks ago and promptly found it on Amazon for half the price.
Anyway, this is an oil sprayer. Simply fill it with your cooking oil of choice, give it a few pumps to pressurize the container, and spray away!
Use it to give meat or fish a light coating, use it to spray down the grates on your grill, or give popcorn that extra bit of zest and stick before throwing on the seasoning.
One warning: it’s not the cleanest thing ever. After a couple months of use, the entire thing has a hint of yellow from small leaks, and the entire canister has that icky oily feel. But it gets the job done and we use it frequently.