Use sheet cake pans and cut out your sizes needed? I've been considering this as I have a very limited space for storing my cake pans, and I'm thinking this may be an easy alternative for the sizes and shapes I don't use very often. For anyone who does this, what drawbacks have you found? I have no issue with leftover cake, as I can make cake pops and cake truffles

I did it a few times in culinary school. The biggest drawback is working with the cut edges of the cake as it crumb-y.

I agree w/leah.....