Get Steps in During Work Without Leaving Your Desk Area
I wore a fitness tracker for a month and the most depressing discovery was my step count on workdays. By 5 PM I had logged fewer than two thousand steps most of them to the bathroom and the coffee machine. I was sitting for nine hours and my body felt like it.
I am not going to tell you to take walking meetings or use a treadmill desk. Those require a workplace culture that supports them and a budget I definitely did not have. Here is what actually worked.

The five-minutes-every-hour rule
Set a phone timer for fifty-five minutes. When it goes off, stand up and move for five minutes. Not exercise. Just movement. Walk to the farthest bathroom. Take the stairs to the next floor and back. Pace while reading an email on your phone. Do a lap around the office or around your house if you work from home.
Five minutes of walking is roughly five hundred steps. Eight of those breaks across a workday is four thousand steps added to your baseline without a single gym trip. That is the difference between a sedentary day and a moderately active day.
Make sitting slightly harder
I moved my water bottle to a shelf across the room instead of keeping it on my desk. Every drink requires standing up and walking six steps. Over an eight-hour day, that is about forty trips and two hundred forty extra steps. It sounds absurdly minor but it compounds.
I also switched to a smaller water glass that needs more frequent refills. More trips to the kitchen. More steps. It is gaming the system, but the system is that my body needs movement and my job requires sitting, so I game it.
Standing desk hacks that cost nothing
I do not own a standing desk. I put my laptop on a stack of books on my regular desk and stand for one meeting per day. Usually the daily standup or a call where I do not need to type much. Twenty minutes of standing burns about twenty more calories than sitting, which is almost nothing calorically, but the real benefit is it breaks the sitting posture and engages different muscles.
An ironing board adjusted to maximum height also works as a makeshift standing desk. I did this for three months during the pandemic. It looked ridiculous. My back felt better.
Quick Summary: Move for five minutes every hour (four thousand extra steps), keep your water across the room, stand for one meeting per day using books or an ironing board as a standing desk. Tiny changes, compound results.