In case anyone finds this post looking for the same info I was:
My fiance and I went to last night's game and drove around downtown and found that Stadium Club on 10th street is doing a free shuttle for customers (for a $5 minimum purchase).
Advantages of this shuttle over the CWS express:
-shuttles are continuous, starting 90 minutes prior to the first game and ending 60 minutes after the last game
-shuttles are smaller, so you don't have to wait as long to fill up the bus before you depart
-you get a beer (if that is what you buy with your $5 purchase) and unlimited trips (if you rode the CWS express you'd pay $3 per way and buses have set times for departure)