If you want to go a small step further you might consider using exiftool to rename all your photos by date. I do this to make sorting and identifying them easier. If you assume fewer than 999 photos/day, this command will rename JPEG files to YYYY-MM-DD-NNN (where 'NNN' = 001-999 in strictly chronological order). Run it in any parent directory when you want all photos there + all subdirectories renamed accordingly.

  exiftool -fileOrder DateTimeOriginal -recurse -extension jpg -extension jpeg -ignoreMinorErrors '-FileName<CreateDate' -d %Y-%m-%d%%-.3nc.%%e .

Make sure those camera clocks are set correctly! Just like with servers, it's easiest if you always use GMT/UTC time.

This is especially cool when you have a collection of photos from an event taken by multiple people, because you see everything in the order in which they were takes regardless of which camera took them (again, assumes clock was correct).