For me, posters conjour up images of tearing out pictures of Let Loose from Smash Hits! magazine and putting them on my wall. But now, they're interesting and cool. Only if they're framed though. Blu-Tak is not your friend.
I've got my eye on these vintage style posters from I Love Retro:
Yes, do mind your manners. The posters are all printed on a vintage press, and this bright yellow will pop on any wall.
Hang this kissing booth poster above your bed, or your favourite comfy chair.
This silver lining one is my favourite. Each print is £32.95 and you can buy them all from Brighton POD. There's only a few of each one so be quick if you want one.