What font do you write in? Do you have strong feelings about it? It turns out many writers do. Slate has a fascinating slide-show essay marking Helvetica's fiftieth anniversary, celebrating the font "some have called the official typeface of the 20th century." In an accompanying article the magazine surveyed a few famous writers and none of them claimed the big H as their lettering of choice (courier won by a landslide--apparently these people have fond memories of their typewriters). If you're in New York, you might check out the MoMA exhibit celebrating Helvetica's golden moment.
Ready for a new look yourself? There are hundreds of sites ready to help you get your font on for love or for money--check out Simply the Best Free Fonts as just one example. To be safe, always make sure you scan downloaded files for viruses before starting that new novel.