[DigitalSea]

Ever tried sending an attachment to someone over 4-5mb? One of the most broken aspects of email right there and something that won't be changing any time soon. Sure you can use a service like Mediafire or Rapidshare, but it's just another step that shouldn't exist in this day and age.

[bobbles]

Dropbox should allow you to send a shortcut to a file (on dropbox) along with your email so that the recipient can just grab the file when they actually want it instead of clugging up the email systems with useless junk.

[notatoad]

This is my favorite feature of sparrow.

[andrewfelix]

In case you're interested; I've been using GMail + Attchments.me + Dropbox. Works well.