Lists are for amateurs, you need spreadsheets. You’ll end up with several over time as you’ll have one for different types of holidays (beach, weekend trip, camping etc).
I put everything on it under different sections - documents and essentials (eg passports, phones and chargers, laptop if it’s s work trip), toiletries, ds clothes, my clothes, entertainment (books, games etc), journey items, to do before leaving house (empty bins, check windows closed).
Then pick a ‘staging area’ whether it’s a spare room, your bedroom floor or wherever. Take an empty washing basket and go through each room pulling out what you think, including the bathroom. Stick it all in the staging area and tick off from the list, then do a second round using the list and/or making a shopping list of stuff you need to get.
When you’re done, count how many luggage items you have, including your bag with passports in, so you can think before you set off, have I got ‘x’ bags in the car?
Once you’re in the car/taxi if you’re going overseas check you’ve got the passports before you turn that ignition key.
Hark at me. I’ve got to do a seven hour drive to Gatwick tomorrow. I bet I forget the bloody passports and have to double back. The main thing is - do as I say, not as I do.
Have a great holiday!