Do you agree that products always have room for improvement?
"Every day there are little things in software that we find annoying. Some write books about it, like Annoyances.org, but I thought this site would be more constructive.
BetterSoftwareSuggestions.com is proudly maintained by myself and the developers at SSW."
- Adam Cogan 
Currently Outlook uses 12AM to 12PM to signify a full-day event – this causes problems when you change time zones.
A full-day event is a full-day event, no matter what time zone your are in.
Ken Getz says more on this:
Time Zone Disaster–All Outlook Appointments Bite the Dust.