@XelaM - I always look at unboxings/lists of contents before purchase anyway because there’s so much stuff I have no use for, (brow serums, powder, tanning stuff, spot patches, etc., etc., etc.), and I don’t want to waste my money.
I didn’t used to check the actual calendar once I had purchased it, but a couple of times I have had stuff missing or damaged so I do now. This is the first year it’s occurred to me to take out things I loathe, (looking at you, sparkling Jo perfume!) and replace with other stuff. Previously I just used to be ‘sad’ on the day when I wasn’t going to like/use an item.
I won’t look again and have completely forgotten many of the drawers.
I think it’s different if someone has gifted you a calendar - I wouldn’t look then.