I just learned about this utility. It's super cool and I bet I could do something useful with it that makes my life marginally better.
I just need ideas ;)

The master list. Good to know.

For completeness: one more door lock.

Another neat iPhone-controlled door lock.

Another cool toy I want for my house.

"If this then that": Very clever online service that lets you create very simple automated scripts for the internet, for example:

• If a photo of me is posted on Facebook then download it to my Dropbox.
• If I am mentioned on Twitter, then post on my blog about it.
• If I get an email, then send me a text message.
  etc....