If you have the cake pans that have the little slider thing that you turn around the pan to loosen the cake, get rid of it! You can remove it by bending it upward and have a perfectly functional cake pan. Or, you can toss it in the recycling bin and purchase a plain one. Wilton's makes a very nice pan for the money.
All you need to do to get the cake out is use parchment paper. Cut the parchment to fit the bottom of the pan, spray a bit of non-stick spray on the bottom of the pan, place the parchement in the pan, spray a bit of non-stick spray on the parchment and...Voila! You have a pan that even the stickiest cake with fall right out of!
Why do you want to go to the trouble of demolishing a perfectly good (well maybe not) cake pan? Maybe you don't want to know. Just do it. If you do want to know, again, read on...
After a couple of uses of the little slider thing pans, batter builds up beneath the slider. This can't be a good thing. We won't go into the health issues here. Just suffice it to say that you don't want to keep baking and baking and baking and letting little bits of last year's cake end up in the one you are baking today. K? Nuff said?
My favortie pan.