How do you do your Christmas/Chanukah/holiday shopping? Are you a planner and list maker or a spontaneous buyer?

Do you make a list and check it twice? Do you plan specifically who you are shopping for and what they’re going to get? Do you solicit requests from your recipients and honor the requests? Do you spontaneously go to stores or online, see something that strikes your fancy, think about who may like it and just buy it? How do you determine who you will buy for?