The appointment is at ten, so you work out when to travel. At departure time, you still need to find keys, print a document and decide whether to bring lunch.
Make a short leaving list for a trip you repeat. Include only the things that tend to cause a delay. Prepare what you can earlier: charge the device, check the address or put a bag by the door. Keep essential items somewhere you can reliably reach them.
Separate ready from travelling
Choose a ready time before the departure time. That gives you a moment to deal with a missing item without taking it out of the journey. Adjust the gap to the actual preparation required and the needs of anyone travelling with you.
After a late departure, notice the specific cause. Repeatedly searching for one item calls for a storage change. An unpredictable journey calls for a different travel estimate. Avoid adding more steps to the leaving list unless they solve a real delay; a useful list should become quicker to use as you learn the routine.
