Mood boards

[Karcheer]

Hello,

I've quite a few rooms to decorate and although I've been playing with Pinterest for awhile I now want to source samples for each room. I'd really like to create mood boards for each room.
Any idea what I should use for the boards?
And how big they should be?

Thank you!

You are not n interior designer having to transport things. So you can get away with using A2 paper. Then you can blue tac it to each wall and see what your ideas look like in different lights. Day and night all four walls.