Call your bank and see if any checks bounced. If they did, you have to deal with the people you gave the checks to. It can get expensive, with the bank charge for each check returned, added to the charge for bad checks from the companies you wrote them to. Hopefully you have a way to access some funds to cover the overdraft. Sometimes depending on the amount, your bank will cover your butt and let you keep a negative balance for a short time, but you will be required to cover it.
You should see if you can get overdraft protection. That's where they'll loan you, say $1,000, if your account goes negative. You need decent credit for that. It's saved my bacon a few times.
Put more money in and pay the overdraft fee
you need to deposit enough money to cover the overage and any fees that is charged.
How about making a deposit! :p
