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Everyone knows that if you have a desk job, you're "supposed" to get up and take a little walk a few times during the day. IDK about you, but my hectic days certainly don't leave time for a stroll around the office every hour.

That's where standing desks and biking desks from FlexiSpot come in — and Amazon knocked the two best-selling models down by over $100 for Prime Day 2018.

Once you get past the fact that they're extra as hell, they're actually really neat. And I'm not just saying that because they're on sale — we have multiple in the office (here's video evidence). They're also ace for people who have a home office.

Not only do they keep you focused on days where there's not enough coffee in the world, but keeping your legs busy can also help you stay in shape and even prevent future health problems. If you can burn off a few calories and possibly avoid complications with your arteries while getting work done, why wouldn't you? That's what I call a life hack.

FlexiSpot Stationary Bike V9 Deskcise Pro — $349.99 (list price $499.99)

Image: flexispot

A CES 2018 Innovation Award Honoree, the FlexiSpot Bike V9 Deckcise Pro sounds like and is a badass invention that is part exercise bike and part standing desk. Whether you're five feet on the dot or towering over six feet tall, you can sit, stand, or cycle while working or doing any other activities that were otherwise only possible sedentary. There's even an LCD display that will track your mileage, time spent cycling, and calories burned. If you can get your biking calories out during your nine to five job, you can actually go home and relax after work instead of forcing yourself to go on a run.

Its sleek, ergonomic design can be assembled in one minute and will blend seamlessly with your other modern home or office furniture, and it's quiet enough to use without disturbing others in the office. Really, it's significantly less obnoxious than you're probably picturing.

Save $150 and get this 2-in-1 biking and standing desk for the stellar price of $349.99 here.

FlexiSpot Standing Desk and Computer Riser — $224.99 - $244.99 (list price $329.99 - $349.99)

Image: flexispot

Say goodbye to those restless legs and numb butt cheeks with the FlexiSpot Standing Desk and Computer Risers. A #1 best-seller on Amazon, this adjustable desk-on-top-of-a-desk can make those excruciating eight hour days slightly less torturous by keeping your limbs busy and mind alert.

If the entire bike desk or full standing desk setup is too much for you, this little guy acts as an in-between step — it sits on top of your normal desk, and can fold to lay flat for when you actually want to sit. Transitioning to standing for a while can help combat chronic neck and back pain by allowing you to look straight ahead instead of down, and your future self will thank you for that.

Depending on whether you use a small laptop or have a double screen monitor set up, there are two sizes to choose from: Save $105 on each and get the 35-inch model for $224.99 here or the 47-inch model for $244.99 here.