A large glass of water soon after waking – you lose water overnight through breathing and sweat. Keep it visible: a filled glass on the nightstand or next to the kettle makes the habit automatic rather than willed. It is the smallest possible starting point, and it holds on the days when nothing else does.

For runs under an hour, water beforehand is usually enough. Beyond that, small sips every 15–20 minutes work better than large amounts at once, and how much you need shifts with heat, pace and how heavily you sweat. Thirst is your guide; the plan is knowing where your water comes from before you set off.

Start smaller than feels worthwhile – ten minutes counts. Fix the slot, not the distance: same days, same time, shoes by the door the night before. And let bad runs count double; showing up on the unmotivated days is what turns running from a plan into a habit. The pace can come later.

Plan it like you plan the route. Fill up before you leave, carry more than you expect to need, and check where you can refill along the way – on many trails, that's the exception, not the rule. A simple rhythm helps outdoors: drink at every break, not just when thirst reports in.

Anchor water to moments you already have: after waking, before each meal, when you close your laptop. Mindful hydration is less about counting glasses and more about noticing the pause each one gives you. Attached to an existing routine, it needs no reminders and no app – which is why it lasts.

End the day the way you'd end a chapter – with a small, repeatable closing move. A short walk around the block, the phone parked in another room, a cup of tea made properly: pick one and repeat it until it signals 'done'. The ritual matters more than what it contains.