The first thing to do is to keep a record of payment due dates of all credit cards. The bills usually become due around the same date every month, so it is a good idea to set reminders two to three days before the due dates. This would enable you to make payment well on time and avoid paying late payment fee and interest charges.
To avoid being over-leveraged, it is essential that you manage your spending well. So, it is better to avoid splurging just because you have lot of plastic money in your pocket. Spend wisely and spend well, so that you don’t get into a debt trap. You may use all your credit cards for your shopping and availing various services, but these should not be used indiscriminately or for frivolous purposes. Keeping a tight control on your credit card spends is the best way to manage all your credit cards.
Lastly, if you do not use all your credit cards, it is better to close down card(s) that you seldom use and have, therefore, virtually become inactive. No doubt, this will reduce your credit limit, but since you are not using the card(s) anyway, it is as good as an inactive card. Besides, closing down inactive card(s) will save the annual fee that you pay for keeping the inactive card active!