Scout out local parks for outdoor workout stations, they're more common than you'd think in many cities. A travel yoga mat takes up no space and lets you do bodyweight circuits anywhere quiet. This approach turned my layovers into active recovery sessions and saved me a fortune on gym fees.

At that Berlin convention last year, an artist showed me how to use the sound of the machine to judge depth. It's about listening for a consistent hum rather than relying solely on feel. This auditory cue has made my shading much more predictable.