How can desk workers relieve tight lower body stiffness without gym equipment?

I keep a small wooden footrest under my home office desk to elevate my feet slightly. During quick afternoon breaks, I simply stand near the bookshelf and do slow ankle circles along with gentle hamstring stretches. It takes less than five minutes, but it noticeably prevents that heavy stiffness by evening.

Working long desk shifts used to leave my glutes completely numb by dinner time. Instead of collapsing on the couch, I started taking five-minute breaks to practice balance movements like unsupported side kicks and gentle knee lifts while waiting for water to boil. Looking through https://betterme.world/articles/standing-leg-exercises/ gave me simple ideas for quick upright movement snacks that restore circulation without ever needing to lie down on the floor or buy equipment.