This post by Lifehacker (based on scripts by Google engineer Justin Goldfeder) is a fantastic alternative to Boomerang, who recently came out of beta. While I love their service, it would cost me $20/mo to continue using it on both my personal and business accounts, and I just can’t justify that. The primary reason I used Boomerang was to snooze messages for later, and this free alternative, while a bit fiddly, does the trick surprisingly well. And as an added bonus, it works on any browser, including mobile, right out of the box. In fact, because its functionality is based on labels (which are treated as folders by IMAP clients), you can snooze a message from any mail client you have attached to your Gmail account, including your phone’s built-in mail client. That’s something you can’t do with Boomerang. I ever-so-slightly modified the script to support up to two weeks of snooze time (14 days instead of the default 7), and used the configuration items at the top of the script to set messages that arrive back to the inbox as unread, while also attaching a new “Unsnoozed” label to them so that I know where the message came from.