I went to Kmart today with my $100 sears physical gift card that I had gotten yesterday from trading in my $100 sears paypal digital gift card (that I had paid $85 for 2 weeks ago). I found a whole bunch of $50 gamestop gift cards, so I got 2 of those instead of 4 $25 ebay cards. I was kind of sad, though, because I was going to end up not getting about $30 of my ebay bucks.
Then, I had a brilliant idea on my way to Gamestop. I have a DiscoverIt card and hadn't spent $500 of my 5% cash back for transportation. So, I stopped by Speedway (on the way to the mall anyway). I spent $500 buying 20 $25 gamestop gift cards (the only denomination they had). I have 40x speedy points on merchandise, so I got 20K speedy points, plus it gave me 3K bonus points for buying gaming gift cards. 23K speedy rewards is pretty close to $20. I will get $25 from Discover next month and $25 more from Discover in October because I am in my first year and they double cash back. Then, I took my $600 total in gamestop cards and got 2 $300 ebay cards (I wait for another customer to go, and made sure the guy was ok with me using 22 gift cards), to get my ebay bucks total to 499.90 for the quarter. I also spent $1.95 on shipping on a GCM order yesterday from my paypal balance (it wouldn't take a 15th card, I tried

).
I also got a $60 AMC card, $120 in Darden cards, a $25 steak and shake card and a $30 Petco card, plus the $295.30 I was short of my ebay bucks total before yesterday, and $56.50 in other cashback (iConsumer 3% to $20 and then splender 2%, plus splender $5 signup bonus). And, I have $562 more in target or sears gift cards than I started with, for my $502 additional investment. By my calculations, I made more than $700 in profit the last 2 days (although I did choose to get $235 of it to use, and not in churnable cards).