Can you take a bus (with bike on the front rack) in to work, and ride home? I'm looking at doing that for my new commute. (15 miles. Previous commute: 4 miles.)
Depending on the part of WA you are in, you might be able to get a bicycle map which shows high and low traffic roads, bike lanes, and bike trails. (I have both the King Co and Snohomish Co maps. They are very useful!)
A local bike club (if you are here in the Seattle area, check into Cascade; in Bellingham check into Mt. Baker) might have a commuter class, where they teach you basic skills and laws, and let you practice how to put the bike on a bus, and help you figure out a safe route. Cascade's class also gives you a $50 certificate if you live or work in Seattle proper.
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