yeah, that's where I am at right now. I only cary balances on 6 cards (1.9% balance transfers and 0% promo for 12 months on purchases)... but i am constantly logging into several accounts that I am not using and don't plan too.
Doesn't sound like it would have an effect for you, but do note that FICO does penalize for balances carried on a certain percentage of accounts. The FICO penalty actually varies between the 3 bureaus for some reason, but if you carry balances on 50% of your credit cards, you are dinged. I believe some people see FICO drops when 1/3rd of their cards show balances of any amount (even $5).
So if you close cards, make sure you know what number of cards you can show balances on without a FICO ding from too many cards having a balance.
Yes, In my opinion, 5-7 for cashback, 5-7 for travel, and 5-7 for business.
If you don't have a business or travel 5-7 covers all you need.
( I know this post will get responses from those 30+ card users )
The gain can't be worth managing, finding the correct card, and splitting rewards.
5-7 is my goal as well! And I do travel (but no longer am business-involved). I think I can get by with 7 cards to maximize rewards, still doing all the math to make sure of it.
30 cards sounds like a monthly heart attack even with monitoring services like Mint to update me. What do you do with 35 cards when you change banks? Yeesh, lots of auto pay updating!