Originally Posted by
pallen
1:45 is a pretty long commute - mine is about 45min, so that may very well make a big difference. I start off clean, then when I get to work, I cool down 15-20min and then wipe down. When it gets hotter, I will probably resort to a "sink bath" with a wet cloth. SO far, I havent had any perceptible issues with feeling dirty or smelling. Its a lot less of an issue than most people think it will be. The key is starting off fresh and clean before the ride.
This is essential information. Also, don't work in your ride clothes or ride in your work clothes. That means change
everything. 
Whether one wears cycling specific clothes is a matter of funds and personal preference, but adhering to the work clothes/ride clothes rule of thumb has worked for me for over 20 years.