Ready for the best April Fools' Day ever? Show off your sleuthing style with these techie, geeky ideas that'll confuse the heck out of your co-workers, friends, significant others, parents — you name it. And if this year is anything like 2014, there will be tons of pranks on the web  that you can send, too.
Source: Reddit user JesskiRoo 
Cover the mouse laser with a Post-It.
Source: Reddit user TheLiam31217 
Please oh please re-create this incredible spider phone prank .
Try one of these brilliant autocorrect pranks , like creating a shortcut on your mom's phone so every time she types "dirty clothes," it says "acid."
Nicolas Cage-ify the photocopy machine.
Source: Reddit user another_new_username via Imgur 
Use a Chrome extension  that turns webpages upside down.
Source: Chrome 
Pull that infamous cat facts prank on someone with this Cat Facts app .
. . . Or the Cornify Chrome extension  that's all about the unicorn rainbows.
Source: Chrome 
Hide creepy Lego figurines throughout someone's place.
Source: Instagram user ktown8932 
Hack the printer to say something funny.
Source: Reddit user tolomont via Imgur 
Glue googly eyes on the mouse.
Source: Instagram user jmacagnone 
Dust Legos with flour so that they look like candy.
Source: Reddit user buskey via Imgur 
Get friends to accidentally send you a selfie with this hilarious picture trick .
Alphabetize a keyboard.
Source: Reddit user Prooffreader via Imgur 
. . . Or rearrange the letters to leave messages like "You can't ge7 m3."
Source: Instagram user smokinaces11 
Block her desk with a Super Mario setup.
Source: Reddit user mfoste34 via Imgur 
Change the WiFi name to something creepy.
Source: Instagram user commanderherzog 
Install the blue screen of death screensaver .
Source: Instagram user everydayisagreenday 
Grow a garden in your co-worker's keyboard.
Source: Instagram user gistiger 
Cover a keyboard with weird ransom-note decals.
Source: Reddit user LegendOfBlainer via Imgur 
Change the look of your friend's app icons so that she gets superconfused. Here's how .
Source: Instagram user stephinthecity222 
Start early enough and you can make a video like this one that captures selfie expressions  on video instead of photos.