I have to say I get stressed because I am fundamentally lazy really and just hate all the 'making lists and then collating/collecting' stuff together from various places in the house.
It is getting together all the 'stuff' that I dislike doing e.g:
first aid kits, antihistamines, painkillers, canesten, moisturiser, shampoo, conditioner, face stuff, perfume, hair brush,tweezers, nail scissors, glasses/contacts, toothbrushes, toothpaste, suntan lotion, sun hats, adaptors, chargers, kindle, jewellery, make up, laxative for DS who without fail gets constipated on holiday, earphons/earbuds, mobile phones, food for the journey and passports, tickets, directions if driving, details of accommodation, insurance documents,( Make copies of everything either paper or electronic) and on and on and on.......
I have very organised lists, grouped by type of holiday
but Most of this stuff is all over the place at home so I spend ages collecting it, making lists of things to buy if we have run out and having to make sure I remember the things I can't pack early because I will be using them until the last minute (Did I mention that I am lazy)
Packing the clothes is easier (except for deciding on which shoes to bring for me) unless the weather is very hot where we are going and also at home - i.e like this year. I have a limited number of 'hot weather clothes' so it is hard to get them all washed and packed without running out of clothes to wear while here.
I also loathe all of the 'putting the "stuff" away' when we get home. I always seem to lose a phone charger or soemthing else in the process.
As for camping holidays. The collating, packing in the car and unpacking at the location, then packing up again and unpacking/putting away at home makes me want to cry and is a major reason we no longer go camping.