The talk on the blogs and news sites that cover Google centered around the notion that Mail Goggles would prevent you from sending e-mails while drunk to ex-girlfriends on the weekends. In fact, the Google developer who made Mail Goggles used that as an example in his announcing the new feature.

But his post, the name of the feature itself and the ensuing witty blog discourse might undersell another e-mail faux pas that Mail Goggles could prevent: Web rage, which often occurs late night and often not under the influence of eight shots of Patron.

Here's how Mail Goggles works: it allows you to preset what times you want Gmail to double check if you're sure you want to send an e-mail. (You can add Mail Goggles by going to "Settings" in the right hand corner of Gmail and then clicking on the "Labs" tab, where it is listed as a new feature). If you enable the feature, it will default to double-checking with you that you want to send e-mails in the wee hours of Friday and Saturday by making you solve some simple math problems.

When sending an e-mail late at night, Mail Goggles asks a Gmail user if he or she is really sure about sending a message. The user also must complete some simple math problems in order to send it.

But in the Gmail settings, you can check off other days of the week. If you're a business user of Gmail who works late, you might want to consider employing Mail Googles as well.