This post is a bit off topic because it doesn't involve travel, per se, but it does involve a points program that I've participated in for a while. Coke has for several years run the "My Coke Rewards" program in which you earn points by entering codes found underneath coke caps like this one:
Well, that has changed somewhat. Coke is now teaming up with Fuel Rewards, a program for earning discounts on gasoline. Fuel Rewards runs a number of fuel discount programs for grocery stores, including "FuelPerks" at Winn-Dixie stores. As of now, 40 Mycoke points can be exchanged for a code that gets you a discount of $0.10 per gallon of gasoline for purchases of up to 20 gallons. In other words, $2 off a 20-gallon fillup. At that rate, my math tells me that Coke caps are now worth $0.15 each.
The limiting factor here is that Coke limits you to "one conversion per MCR Member, per month." However, if another family member has a MyCokeRewards account, you can combine the Fuel Rewards codes into a single account. I can confirm that this works, at least on a limited scale.
This new development is hardly life-changing, but it adds some value to a pretty much moribund program.
UPDATE: Too good to last, I suppose. Coke has apparently withdrawn Fuel Rewards from the redemption options. No idea if it will come back, but I would expect it will at some point.