Iterate over each Day between StartDate and EndDate

I have a DateTime StartDate and EndDate.

How can I, irrespective of times, iterate across each Day between those two?

Example: StartDate is 7/20/2010 5:10:32 PM and EndDate is 7/29/2010 1:59:12 AM.

I want to be able to iterate across 7/20, 7/21, 7/22 .. 7/29.