There have been some really funny ones so far Tuesday:
- Google will automatically photobomb all of your photos with David Hasselhoff. It's #Hoffsome, they say.
- Learn to speak Klingon with the latest Rosetta Stone offering. That will look good on your resume.
- Samsung's latest tech foray: a wearable LED glove. Inspector Gadget, anyone?
Have you seen any great April Fool's jokes or pranks today? Tell us in the comments -- we'll keep updating our list throughout the day!