Here is an odd situation that caused my credit score to actually go down... although it is still in the highest area... I dropped one of my credit cards that I no longer use
There is a balance where too many cards are not good and TOO FEW are also not good
It turns out, I was better off keeping a card that had a healthy credit line even if I never used it...
Another great point.
We have got in the habit of putting routine bills on separate cards so they are all utilized equally. Always good to keep an eye on the rewards programs too for any specials - good to switch things up if the opportunity presents itself.
Also, one needs to be aware of limiting the amount of 'hard credit checks' when applying for larger purchases. Too many of these over a short amount of time can also be a burden to the credit score.