Your phone may see more than you think (and do).
Pick up a random remote, for instance, point it at your phone's camera — and press the on/off button. If the phone is on, too, and the camera app open, you might see the infrared light from the remote flicker across the screen.
Now, from your phone's somewhat secret abilities (maybe you can send covert messages across the room with them) to adding abilities to your phone with a secret email address (you can send photos across the world with it, of secret messages maybe):
›› Your Facebook account has a secret email address. Keep it a secret, and use it to post to your wall or share media. Here's how to find your secret Facebook upload address, and how to reset it if it gets lost.

Caps, calendars, cards, cabs or cars: he was everywhere. More flowers than he could hope to carry in his arms, the man with the big grin on his face carried Phil Bosman's message into 1970s Flanders: Menslief ik hou van je — "Sweet being, I hold you dear."
Valentine's Day is about slightly different a kind of affection, of course; its message, though, is just as worthy of delivery:
›› Send a lovely Valentine card this Valentine's Day. (Windows Mail, Windows Live Mail, Outlook, Outlook Express)

If it ain't baroque, fix it.
If your music does not sparkle with emotion only just — but still — kept in check, for instance; if it is not imbued with the steady beat of a dance and lacks a basso continuo; if it does not take advantage of new instruments and is in no way inspired by Italian opera: then baroquisation should be considered.
Speaking of operatic fixes:
›› Lost your Opera email and account settings? If a backup copy is around, restoring data is easy.

The coldest place in the universe, until very recently, was probably some 1.5 million kilometers from the Earth and opposite the sun. Now, it may be 1.5 million kilometers from the Earth and opposite the sun.
To look at crisp cosmic background radiation, the Planck space telescope's instruments were about 0.1 K (-273.05 °C or -459.49 °F) warm. Their coolant has run out at the beginning of 2012; the Herschel space telescope's instruments (which look at regions of star formation, asteroids and dust) nearby are still cooled to 0.3 K.
Now, before the nomination period runs out, what do you think are the coolest instruments for email?
›› Nominate the best email products 2012 for the About.com Readers' Choice Awards.