Originally Posted by TattooedDroid
Yeah, hat or glasses. You should try it out, both are free on the market.
I second that about Visidon Applock... and I've even tried to fool it.
Works with or without glasses, hat, etc. My son looks just like me, even down to the facial hair, but it won't unlock for him.
I give it 5 out of 5 stars, but just make sure you take many "training" shots of your face in various lighting situations.
Another app I couldn't live without is Gemini App Manager
Where's My Droid has saved my phone on several occasions, so I should add it to that list too. lol