Start with your actual day
List the places you are going and the things you will need there. Your everyday bag and your travel bag do not need the same contents.
Keep small things together
Use a pouch or a dedicated pocket for the items you often search for. Group charging accessories together and keep items you need quickly near the opening.
Check before you combine
If one accessory replaces several, verify it works with all of your devices. For flights, check the airline's current requirements for batteries and electronics before packing.
Do a weekly reset
Take out old receipts, unused cables and anything you carried but never reached for. Make one change at a time and see whether it improves your routine.