Do not change jobs, become self-employed or quit your job.
Do not buy a car, truck, or van (or you may be living in it!)
Do not use credit cards excessively or let current accounts fall behind.
Do not spend money you have set aside for closing.
Do not omit debts or liabilities from your loan application.
Do not buy furniture prior to closing.
Do not originate any inquiries into your credit.
Do not make large deposits without checking with your loan officer.
Do not change bank accounts.
Do not co-sign a loan for anyone.