It's amazing - well, to me anyway! - that the No 1 question folks ask is this one.
The answer is pretty easy - normally, until they are all gone!
BUT, there is some science to it, and these are the recommendations I make to my clients:
If your cakes are a classic vanilla, chocolate or other flavoured butter cake, then you have about 3 days in which to enjoy their cakey goodness.
If your cakes are a muddy cake, whether chocolate, raspberry, dulce de leche (caramel) or milk, you have a good 5 days of enjoyment.
Carrot and walnut cake, and our signature dragonfly cakes, will also last you a good 3 - 5 days.
However, if you add cream cheese frosting to any of these cakes, no matter what cake base you have, for safety's sake, please consume within 3 days, and these little lovelies must be refrigerated! (And, as we all know - I hope! - refrigerating a buttercake is not kind to the cakes internal texture, and it will become dry very quickly, so these varieties should best be eaten on the day you receive them)