copied is the only way to use them. they come by email and you have to copy them in order to use them, unless you bring in your computer and show it to them online. it also says that only one may be used per purchase, but it doesn't say how many purchases you may make using them. i copy them as many times as i think i will use them and have never, ever been told that i can't use all of them. some managers have said i must make separate sales each time, some have said i have to come back another day. but no one has ever said not to use the rest.
i have also shopped with friends using copies of the ones from my emails and they either can't tell or don't care. i think they don't care. it brings in customers and that's the point. without the coupons i would never shop there. i would rather weave my own fabric before i would give them retail money, and my friends all feel the same way.
edit: as far as the rest of that disclaimer, i believe
that what they mean is that you can't print them out and sell the copies, or change the dates (altering them), etc.