Seems there hasn't been a lot of activity on this forum and I admit I generally don't go to shoppers (I'm a harris teeter guy mostly). However, the ad this week says from 6/5/11 - 6/18/11 -- when you buy $100 or more in gift cards, get $20 off your next order.

I verified this deal works with any gift card today, purchasing a $100 amazon card and got the $20 off. The $20 off expires 1 week from the date of purchase. Not a lot of time, but a great effective 'discount' on gift cards by giving you grocery money.

It is a shoppers coupon so it can't be used anywhere else.