Best plastic/see through storage boxes

[LOVELYDOVEY05]

I want to store some books and files in the loft/attic. There seem to be loads of these boxes on sale it is hard to choose between them.
I saw some for 7 litres . Would this be the right size? Thanks

The 'really useful' plastic boxes are quite sturdy IME, and are sold in lots of different sizes.

For books I wouldn't get the biggest boxes as they will be too heavy to move around!

Without a doubt Really Useful Boxes. The 35 litre size (I think) is about the size of the sort of cardboard archive box you use at work and fits folders and books nicely. They are a bit pricy but completely airtight and waterproof.

Really Useful boxes, but do shop around as the prices vary a lot and be careful about which sizes you go with. I bought some larger ones as Staples at a great price a few years back but they were too big for us and ended up giving a few away.

Yeh, same as above. They are a bit more expensive but the quality is great.
Think mine are 45l but I have the larger ones for my xmas decs.

Sell them in all the DIY shops or argos or even on their own website.