Use Gmail Generate Unlimited E-mail Addresses: Here’s a feature in Gmail I didn’t know about.
Gmail has an interesting quirk where you can add a plus sign ( ) after your Gmail address, and it’ll still get to your inbox. It’s called plus-addressing, and it essentially gives you an unlimited number of e-mail addresses to play with.
You can use it to filter email, essentially assigning it a label when it’s sent rather than when you receive it.
[…] say your address is email@example.com, and you want to automatically label all work e-mails. Add a plus sign and a phrase to make it firstname.lastname@example.org and set up a filter to label it work.
[sigh] I love Gmail.