Gift card budgeting?

I've been a long-time reader of Get Rich Slowly. When I saw a recent post on "reverse credit" I was a little put off by the title. I'd label this technique more accurately "gift card budgeting."

JD points out the pros and cons of gift cards in another post, but I really like the idea of both saving for big items and making regular small purchases through this high tech form of envelope budgeting.