Why indeed? When you can just call it 'productivity' and claim you're 'streamlining' your workflow. Learn the art of sending 300 emails a day with only 3 keystrokes.
Procrastination is the mother of invention, or so they say. By doing as little as possible, I've come up with: Nap time as a legitimate work hours equivalent. The overthinking technique: spending 5 minutes on every decision, because 5 minutes feels like a lot less time-consuming than 1 minute.
The downsides of laziness are many. Don't get me started: When your boss asks you to meet a deadline and you just can't be bothered.
But honestly, it's all worth it for the sweet, sweet feeling of doing the bare minimum.
Disclaimer: being lazy is different from being lazy. Don't get it twisted, folks.