I use my AMEX Plat for EVERYTHING. I barely buy a pack of gum with cash anymore, as I like earning the points. I just redeemed my points for $1200 in home depot gift cards (my favorite and most useful MR redemption!).
Just an FYI, by using the MR bonus mall for purchases, you get 4x MR points. Rather than shop at, say, Target with the AMEX, I purchase Target gift cards via the bonus points mall and earn 4x the points. Then I take my gift cards and puchase what I need from target.
At 4% rather than 1%, that's $4K in your pocket per year on $100K AMEX spend....
just sayin'
