Bodylastics Stackable Resistance Bands Set
A full-body strength setup that fits in a drawer sounds like a compromise until you've used a good stackable band system. Clip several bands onto one handle, and you can load up to gym-level resistance; unclip them and you're doing light rehab work all from the same small kit.
The Bodylastics Stackable Resistance Bands Set is built around patented anti-snap technology and an inner safety cord that keeps a band from recoiling if it ever fails, which is the detail that separates a trustworthy set from a risky one. Every set ships with the same core kit: two handles, two ankle straps, a door anchor, and a carry bag. You choose your configuration on the product page, from the Basic 3-190 lb set in a few colors up through the Pro and Pro Max levels, so you can match the resistance to where you actually are.
For a workspace, it's the most range you can get from the least space, a genuine strength session that lives in a drawer and anchors to the back of your office door.