There always seems to be one expense that doesn't fit in any of our envelopes. At first we decided if it didn't fit in one of the envelope categories (Home, Auto, Entertainment, Personal Upkeep, Mika or Gifts) then it wasn't something we should be spending money on. That lasted about three days. There will always be expenses that don't fit in those categories, you just can't let them deter you from the ultimate goal of being debt free.