My aunt did this for her wedding! Put the name of every guest on a post it and make a diagram of your reception venue. This way you can easily move around people right up until the wedding without having to erase or rewrite names. 

My aunt did this for her wedding! Put the name of every guest on a post it and make a diagram of your reception venue. This way you can easily move around people right up until the wedding without having to erase or rewrite names.