This was suggested to us by our registrar when we went to book our wedding.
Jon and myself have lived together for years, have 3 kids and don't need anything in the way of gifts. So she suggested to us instead of asking our guest for gifts ask them to pay for their own meal for the wedding reception, which is an idea if you are on a tight budget and know your guests well!!
However we are asking for cash to put towards spending money for our honeymoon.
Gail
