Ok shelf life.

If stored correctly no. They need to be kept in a cool dry place. So not out in your shed. In the miss'as undies draw is perfect. Im sure she wont mind. ha!

They are also best of stored flat. This is not real easy to do though. They can be stored rolled up but what we would do is suppy you a set that does not have application tape. So they can roll up easily without comming away from the backing.

hope that helps

--- Updated ---

Gaddy check here: http://mysandman.com.au/index.php/the-hz/decals

Or if you want a photo of them just message me your email address.