Originally Posted by tjspiel

Yeah, some people just wipe themselves down after they get to work. Giant Doofus has some good suggestions.

I'd make a practice trip or two on non-work days to get comfortable with the route and see if the distance and any hills are manageable given your current fitness level. Four miles each way might be really easy for you, or it might not. If the whole distance seems too long, you can put your bike in the car and park it half way between work and home until you're comfortable doing the whole distance on the bike.

Lastly there's no problem with 27 inch tires other than a limited selection at bike shops. Newer road bikes typically use slightly smaller "700c" tires rather than 27 inch so that's what you'll find a bigger variety of in stores. You can use the same tubes for either as long as they are the right width.

If you haven't ridden a bike much in awhile it may take a bit for your body to adjust. You may get a little sore but if your back, neck, wrists, knees, or shoulders start and continue to bother you while riding it could be a fit problem. Forgive me if I'm talking about stuff you already know. The only reason I mention it is that I wouldn't want a problem that could be solved with some minor adjustments to your bike to keep you from riding.