Why it works
Backlogs rot silently: stale tickets pile up, the top items drift out of date, and by planning time nobody trusts the order. A small weekly habit keeps it always-ready — and because grooming is the same routine every week, a frozen recurring email is the perfect forcing function. The nudge never changes; the backlog it protects does.
Make it yours
Mid-week works well — far enough from planning that fixes have time to land. If grooming is a shared responsibility, the "reply if anything needs a decision" line turns a solo chore into a quick team signal.