I'm one of the keen gift card buyers and keep track of everything. I know roughly how much I will spend in gift cards per month. I buy a months worth at a time and then by the time the entry turns up on my credit card statement, I have already spent the funds.
Yes, like us, you are the person they do not like much.
The roundabout of Coles $300 card used to buy Coles/Myer (for petrol & Myer), Bunnings, Good Guys, JB Hi Fi (want a new fridge/freezer..., etc). Or the WoW $300 cards used for the gift cards that Coles don't stock.
Just a shame that you don't get points on gift card purchases using a gift card. I can dream... <Yes, I know an infinite source of free flights, so never happening.>
Used gift cards
Also are very useful, as rigid plastic does not scratch glass nor take off paint from car panels.
Very good for scraping paint off edges on wooden framed windows for example, cleaning small leaf litter/muck from around body panels on cars etc.
Unfortunately as they are so durable we source enough each year to last a lifetime.
One day I'm going to challenge the family to who can build the tallest giftcard tower (like playing card stacking).