My policy = celebrate once a month, final Friday, for all bday kids of that month. Parents invited IF ONLY fingerprinted (school policy) and NO large cakes. My kids wear uniforms (expensive ones) and the carpet is brand new. No juice, just water. Cupcakes or cookies are OK. I encourage parents to bake their own if possible, as it's cheaper than buying from the store, and you can control what ingredients go in them. I also encourage them to use it as baking time with their son or daughter. Win-win. I don't want the kids filled up on sugary drinks. Of course, allergies of ingredients are in play. Party occurs in the last 40 minutes of that final Friday of the month.