If you're too nervous to look directly at your audience, look over their heads. It gives them the impression that you're still looking at them, and you won't feel as nervous.

Try not to drink milk after eating an apple or spinach. It kills the iron in the food.

I just found a great way to make a dirt-cheap iPad stylus. Just wrap the end of a pen with aluminum foil and just make sure that the foil touches your finger at some point. Enjoy!

There's this cool app called #Tipbox. It allows you to easily find and share useful tips while on the go. You should check it out! ;)