My wife and I swore off revolving credit about 2 years ago and have since paid off all our credit card debt and closed all but one credit account. Reading various sources in print and online, I've noticed that opinions differ on whether it's a good idea to hang onto a credit card for emergencies (that's what the emergency fund is for, right??).
And as a followup, if we do keep the one card account open, do we need to purchase something every month (or 6 months or year) to keep the account from getting closed or put on hold for not being used?

