We're heading to France (Brittany) in 10 days. Last time we went, 4 years ago, different car, we dutifully got and applied those sticker things you're supposed to put on your headlights- but noted no one else pulling off the ferry appeared to have bothered. Did they all troop to their garage and get their lights adjusted? Or spend ages with their lights pointing at a wall going 'up a bit/down a bit' - or did they just ignore it??
4 years ago, re the stickers and realigning headlights, my MOT garage told me he put a warning on the MOT for people who hadn't realigned their headlights after a European holiday as they didn't meet the MOT requirements for properly aligned headlights in the UK! He said you have to watch out because your insurance could refuse to pay out if they spotted that and you hadn't rectified it!
We're in France now, have used the stickers (put them on at first service station rather than on the train). Pretty sure you do still need breathalysers, warning triangle, hi vis vests and first aid kit.