Is it even a party without cake? Yeah... we don't think so either. But it's hard to know just how much cake you're going to need. Some people aren't cake eaters at all, while others want all the cake.

Picking up a cake — be it for a birthday or other holiday — from the store is easy enough, but have you ever put much thought into how much cake you need? Probably not, and, honestly, we haven’t ...