Box the Time, Don't Block It
This gets 45 minutes, not a moment more. Go.
For your next task, set a hard constraint: "I have exactly 45 minutes to produce a working version of this." Not a time block (reserving time) — a time box (constraining time). When the timer ends, stop and evaluate what you have. Ship the 45-minute version.
You're prone to perfectionism, scope creep, or spending far longer on tasks than they deserve.
The work has genuine quality requirements that a time constraint would compromise.
Why it works
Constraining time forces prioritisation of what actually matters, activates urgency that cuts through procrastination, and prevents perfectionism from consuming the schedule.
Time blocking reserves a slot for a task but doesn’t constrain it. Time boxing gives the task a fixed, non-negotiable duration. The distinction matters because work expands to fill available time. A report that ‘takes all afternoon’ when blocked will take 45 minutes when boxed — the constraint forces you to identify the essential output and cut everything else. The psychological shift is significant: instead of ‘how long will this take?’ you ask ‘what can I produce in this window?’ That changes you from a passenger to a prioritiser. The hard stop also starves perfectionism — which thrives in open-ended time and dies in a box.