First day not getting on the bike at all - it's sitting in the youth hostel right now. I slept for 11 hours, a sign that maybe a rest day was needed.
Speaking of the hostel - it's great! The normal price for travelers is $25 per night, but is discounted to $15 for cyclists. Apparently a lot come through during the summer. The hostel was pretty empty last night in the men's dormitory aside from me and Lars. He's a graduate student in Germany, and will finish his master's thesis in political science after a semester here in STL.
There is good public transportation in the city, and a day-long pass is cheap. However the hostel is close enough to downtown that I opted for walking, especially on such a nice day.
The public library here is great. I think I'll spend an hour or so there this afternoon doing some route-planning and host-finding.