What cards do you use to fully take advantage of cashback and points? I have pretty good credit score but I've only been using a single card my bank offered me, which just has 1.5% cashback on everything. I see people mention using a single card just for gas and another just for groceries or travel.
Costco credit card is my current main card. I have every single no fee credit card available from always taking welcome promos. I use 0% promo balance transfers and just max transfer into my debit account then transfer to my brokerage and buy t-bills. It's literally free money if you have cash flow and pay it back before the 0% expires.