Even now it's possible to get a raise

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NEW YORK (CNNMoney.com) -- Companies across the U.S. are looking for ways to whittle down costs. A recent survey from Watson Wyatt indicates that 42% of companies have already frozen salaries. But there are strategies for getting a raise, even in a down economy.

Getting a raise may be a little more difficult, but it's not impossible.

Your value as an employee is not dependent upon the economic conditions of the time; it's all about what you bring to the company. And putting together a good strategy is key here. Here are some do's of getting a raise:

First, time your proposal right, like after a large achievement. And make sure you schedule an appointment with your boss. Forget scheduling your meeting on Monday mornings or Friday afternoon.

Don't forget to highlight your accomplishments. Think: how have you contributed to the company's bottom line? And finally, be flexible -- let your boss know that you understand that times are tough. Maybe you don't get the raise you wanted, but maybe you can negotiate to work at home on some days.

Now, keep in mind that there are some big no-no's too. When you do ask for a raise, make sure you don't beg, whine or get angry. Keep it professional.

When you're asking for more money, don't make it about you. You shouldn't be getting a raise simply because your personal expenses have gone up. Necessity never made a good bargain. And finally, don't be unrealistic -- have an idea of how much you can ask for.

If you feel as if you're just hitting a brick wall, it helps to be persistent. Ask the boss if he or she will consider a second meeting a few months from now or perhaps an accelerated annual review.

If you can't get a raise, think about how your company can help you take the next step on your career path. Perhaps you can ask your employer to pay for more education or career-development courses that will raise your value.