Observations from my short time commuting:
1. more bikers who follow the Rules of the Road and don't put themselves or others in danger and give the rest of us a bad name
2. bikers with manners (a theme here??)
3. a way to shave some time off the time I spend in the small locker room where I go to shower and dress for the day - I've been trying and I just can't get any minutes off there (unload the bag, arrange things, get to the shower, take my shower, dry off, get dressed, dry my hair, put on my face [which is only moisturizer and eye stuff...])
4. an easy steamer to take wrinkles out of my clothes that have been smashed into my bag
5. a way to get lunch to work too - right now it's clothes or food, but not both. The panniers are crammed to the gills since there are two of us.

I've enjoyed reading through all your thoughts - great ideas, and some, well, other ones...