I have so many packing lists from all of our trips, plus my work trips, that I can be packed the day before with no issue. I don't know how people pack though without making packing lists.
I never use a packing list but I do have a packing routine.
1. Get DH to pull out everything he needs me to pack. (I am a master at fitting things into suitcases so I handle the actual packing)
2. Grab everything I can think that DS needs.
3. Go through my clothes and pull out everything I want to bring.
4. Look at DH's pile, count the days we are going to be gone and put back 1/2 the underwear he grabbed. Also, double the number of shirts.
5. Look at DH's pile again and realize that he has packed half a dozen pairs of black dress socks and only 2 pairs of sports socks. Fix this.
6. Remind DH that he may want to grab running shoes and sandals.
7. Look at DS's pile, count days we are gone and pat myself on the back for only over packing by a bit.
8. Look at my pile.
9. Remove 1/2 of the clothes from my pile.
10. Remove at least 2 of the pairs of shoes and a few of the purses.
11. Grab the toiletry bags that I always have packed for each of us.
12. Pack everything.
13. Go back through the piles and remove more unneeded stuff after I can't fit everything.
14. Repack at least once more.
15. Tell DH and DS to pack their own bloody carry on bags.
16. Remind them to pack all of their assorted cables.
Hmm, maybe a packing list might not be the worst idea...