Have you ever attempted to bake brownies or a pie only to discover you did not have the right size pan? Or do you suffer from hearing loss due to trifling through all those clanking pans? Wouldn't it be great if you could have just one pan that adjusted to the correct size for whatever you were making?

With just one, expandable baking pan all these problems disappear. I am proposing a pan that expands or contracts to whatever size you need to bake those delicious brownies or apple pie you have been craving all night.
The brownie pan would need to start out square and expand into either a larger square or a rectangle and the pie pan would be a circular pan that simply expanded. Measurements would be written on the side and the pan would click into the desired size.