Genetic cloning doesn't exist yet, but there's no reason why you can't clone yourself using paper instead.
The government unfortunately doesn't want us to clone ourselves so we can harvest organs and take a few days off from work here and there. Luckily, we can get a taste of what it'd be like to have a clone thanks to a set of instructions that teach us how to create a life-sized papercraft doppelganger.
It's not easy, so make sure you've got a full week of free time and enough money to buy all of the components. You'll need lots of paper of course, but also photos of yourself from all perspectives, skills with 3D modeling and image editing programs, and various other components. It might also be useful to have a friend help out. Just make sure you kill him afterward so your secret remains safe.
The project creator's clone might not look like an exact copy, but I think it could fool an employer for a day or two. Just keep it under your desk and bring it out when you need a nap. It could also be used as a friend for those terrible lonely times. A paper clone has plenty of good uses, if you can stand its unflinching stare day after day. If you wake up in the middle of the night and something is standing over you while you sleep, it's probably time to break out the scissors.