If consistency is what actually moves the needle, the useful question is how to be consistent when motivation comes and goes. Here is one of the most reliable answers behaviour science has, and it costs nothing: attach the habit you want to one you already have.
Why willpower is the wrong tool
Most of us try to build a new habit by relying on memory and motivation. We resolve to do the thing, and for a few days we remember and we feel motivated, and then a busy morning comes along and the whole thing falls apart. This is not a failing of yours. Motivation is simply an unreliable fuel. It rises and falls, and it is always lowest on exactly the days you most need it.
The trick is to stop relying on it altogether. Instead of adding a new thing to remember, you bolt it onto something you already do so automatically that you never forget it.
How anchoring works
Pick something you already do every single morning without fail. Boiling the kettle. Brushing your teeth. Feeding the dog. Switching on the coffee machine. These are your anchors, and the beauty of them is that they require no motivation at all. They just happen.
Then attach the new habit directly to the anchor, so the old one becomes the cue for the new one. Your greens go in the glass while the kettle boils. The vitamin sits right next to the toothbrush and gets taken straight after. You drink your water the moment the coffee starts brewing. The new habit stops depending on memory, because the thing you never forget now drags it along behind it.
This is one of the most consistent findings in the science of behaviour change. Habits form fastest and last longest when they are tied to a stable, existing routine and a reliable cue, rather than left floating on their own to compete for your attention.
Make it easy, make it obvious
Two small things make anchoring work even better. First, make the new habit obvious: leave the greens tin next to the kettle, the vitamins by the toothbrush. Visible cues beat mental reminders. Second, make it easy: shrink the habit down so it is almost impossible to skip. One scoop, already by the glass, takes ten seconds. The lower the friction, the more reliably the anchor carries it.
Try it this week
Choose one habit you want to stick, and one anchor you already never miss. Put them physically together tonight, so tomorrow morning the cue is already in place. Then simply let the habit ride on the back of the routine you never skip. You are not adding willpower. You are removing the need for it.
The takeaway: Do not rely on motivation to build a habit, because it fails you on the days you need it most. Instead, anchor the new habit to something you already do without fail, make it visible, and make it easy. Choose one anchor this week and let the habit ride along behind it. For a case study in a habit worth anchoring, see our go-to repeatable breakfast.