I've come across the dilemma of having too many boxes, so I'm in the process of purging them - hopefully I offload my excess packaging, otherwise they're going in the bin (and it'd be a real shame for some of the rarer boxes to get binned).

Your other option is to make storage for your boxes... which seems like a waste to me. Something you can do is flatten your boxes for storage. But I dunno... I don't see the point of collecting things for storage. If I can't see it and/or use it then I don't see the purpose of keeping it.