1. Don't buy if you can't stay put.
If you can't commit to remaining in one place for at least a few years, then owning is probably not for you, at least not yet. With the transaction costs of buying and selling a home, you may end up losing money if you sell any sooner - even in a rising market. When prices are falling, it's an even worse proposition.

2. Start by shoring up your credit.
Since you most likely will need to get a mortgage to buy a house, you must make sure your credit history is as clean as possible. A few months before you start house hunting, get copies of your credit report. Make sure the facts are correct, and fix any problems you discover.

3. Aim for a home you can really afford.
The rule of thumb is that you can buy housing that runs about two-and-one-half times your annual salary. But you'll do better to use one of many calculators available online to get a better handle on how your income, debts, and expenses affect what you can afford.

4. If you can't put down the usual 20 percent, you may still qualify for a loan.
There are a variety of public and private lenders who, if you qualify, offer low-interest mortgages that require a small down payment.

5. Buy in a district with good schools.
In most areas, this advice applies even if you don't have school-age children. Reason: When it comes time to sell, you'll learn that strong school districts are a top priority for many home buyers, thus helping to boost property values.