Yesterday I bought a great new kitchen tool. It is a reusable oil mister.
Here is an example of what one looks like at nexttag.com but I'm sure there is a huge variety of misters out there.
I used to love spray vegetable oil in an aerosol can but it isn't very friendly to the environment. I missed being able to spray a cake pan or even bread to make grilled cheese but now I have the solution.