Most business decisions get made in meetings, walks, conversations — and forgotten within weeks. Documenting decisions (what was decided, why, by whom, when) creates institutional knowledge that survives staff changes and your own future memory failures.
What to document
Strategic decisions (direction, priorities, what we're not doing). Hiring decisions (why this person, what they're responsible for). Customer decisions (which customers we serve, which we don't, pricing). Operational decisions (vendors, tools, processes). Even simple 'we decided X, here's why' is enough.
Where to keep the documentation
Notion, Coda, or shared Google Docs work well. Searchable. Linked between documents. Updated as decisions evolve. Single source of truth that team can reference.
Why this pays off
New employees onboarding faster (don't have to re-derive everything). Your own future self thanks past self. Easier to spot when you're contradicting previous decisions. Better strategic alignment over time.