I can't vouch for this particular coupon but I've been able to use the same coupon twice on one day. Granted, not at the same time but I've gone in the morning and then again at night.
I tried to get the Office, Season 2, but they were out of stock. I saw it in my local Borders store, yesterday, but was sold before I got there today. I should have hidden the copy I saw yesterday.
add your local borders to your list. search for whatever dvd you want to buy. then either call them and ask them to hold it or use the hold it option at the web site.
I wasn't aware you could do this until I went to the store yesterday. The computer was showing The Office was in stock, but a clerk went to the front desk and found out they were holding it for someone. I think that sucks, mainly because I didn't know about this policy and lost my chance for a great deal. The 40% off is about the only time DVDs are going to be cheaper at Borders than at Best Buy.