Not much needed here beyond the title. I guess I could have just tweeted this, instead of making an entire blog post about it.
Anyway, since I have two Amex Platinum cards (a standard one and a Mercedes Benz one), I added both of them to my Uber account and instantly saw $30.00 in credit sitting there. Obviously this isn’t a reason to keep both open in perpetuity, since the credit won’t come close to covering the additional fee, even after using up the airline credits. Still, for the few months I have both cards, it will be nice to get $30 per month to use on Uber rides (or Uber eats).