UNIETD

Share Wi-Fi access. I wrote this up a while back, but it's pretty great: Wifi Joiner lets you create and post a QR code that embeds access info for your wireless network. This is great for home networks, coffee shops, and plenty of other places. For the moment, though, it's Android-only.

Get reminders as you leave the house. If you use an online task manager like Google Tasks or Remember The Milk, it's easy to create a tag called "Leaving the House," "Leaving Work," etc., then create a QR code directing to that page. Post it at the door, or anywhere else you'll be sure to see it when leaving, then scan it for reminders of things you need to do before leaving. At the very least, you won't forget your phone anymore! Have you come up with some awesome uses for QR codes? Let us know.

Tripoli, Libya (CNN) -- Libya's interim leadership gave residents in the pro-Gadhafi stronghold of Bani Walid a 48-hour notice to leave the city as it sent reinforcements there and to the former regime's other remaining strongholds at Sirte and Sabha. As the National Transitional Council sought to assert control over all its territory, the U.S. assistant secretary of state for Near Eastern affairs, Jeffrey Feltman, arrived in Tripoli Wednesday to meet with Libya's new leaders.