Make it obvious with an implementation intention

Pre-decide the when-and-where: “I will [behavior] at [time] in [location].”

Why it works

Specifying time and place creates a cue that triggers the behavior automatically, offloading the decision from in-the-moment willpower to a pre-committed plan. The cue does the remembering for you.

How to do it

1. Write the exact sentence: "I will [behavior] at [time] in [location]."
2. Pick a cue that already reliably happens at that time/place.
3. Make the behavior small enough that the plan is never the bottleneck.

Evidence

Implementation intentions are one of the most robustly supported tools in behavioral science — a large meta-analysis found a medium-to-large effect on goal attainment. (rct)

Effects shrink for very difficult goals and fade if the cue is vague. Specificity is the active ingredient.

Sources

• Gollwitzer & Sheeran (2006), meta-analysis of implementation intentions (d ≈ 0.65), Advances in Experimental Social Psychology

Common mistake

Setting an intention as a vague wish ("exercise more") instead of a concrete when/where, which gives the brain no cue to fire on.