The end of the year is fast approaching, which means jingle bells, shopping hell, eggnog and . . . annual reviews. If you've been nice, not naughty, that also means it's prime time to ask for a raise. Maybe your company's performed well this past year, or maybe it's cutting corners, but either way, if you know you've done a great job, then by all means, step up and ask for what you're worth. Here are some tips on how to finesse your way into a salary upgrade: