they were mailed last week and the event starts next week.
the last time they sent them out was during christmas and (in my store at least), they were very strict about letting people reuse them, etc. i had forgotten my coupon and the only reason she let me use someone elses was because she looked in this big book and found my name...i don't know how much you have to spend to get one, or even how long you have to be a customer.
i don't know if it has anything to do with signing up for the mailing list or not...i just know that i've been getting these coupons forever...