Greciangirl, at my daughter's university, there was a scheme whereby graduating students could leave things behind for other students, who needed things but had very straitened circumstances. I thought this was a really good idea and it would also have the byproduct, hopefully, of fewer items that charity shops were not able to use.
On another note, when our daughter started university, we bought all her crockery, cutlery and cooking utensils from charity shops and car boot sales. It saved a fortune. I bought some of her bedding from Ebay and only basics like towels, mattress protector, duvet and pillows were bought new. We saved a fortune and many items from landfill in this way.