I have 10 Amex cards (Plat, Biz Plat, Rose Gold, BBP, Biz Gold, Biz Green, Hilton Aspire, Hilton Biz, Hilton no fee, Delta Biz Gold). The cards that see regular spend are the Plat (when I have an offer or when I am paying cash for Southwest flights to get 5x (and not worried about needing the insurance I get from the CSR), Rose Gold (dining and grocery), BBP (I've got some recurring payments set up on this one like the gym, Orangetheory, etc.) and occasionally Biz Gold (for gas, but I haven't used it in several months). The Biz Plat I use if I have an offer or for things like the Dell credit, but I'm not planning to keep it pas the AF date this year. I'm also planning to cancel Biz Gold and Biz Green when those AFs hit. I've continued to put a little spend on my Hilton Biz past meeting MSR to keep the RATs happy since I met MSR with one big charge. I'm not planning to keep that card after a year either. Cross fingers, but I've never gotten an Amex popup...