Seawoozle I think that things like sentimental jewellry apart, I think it is best not to leave specific 'things' to people but let them sort it out after you die. Money is something else and that does need to be dealt with in a will.
At the moment we are emptying our holiday house in France. It is very like the clear out that takes place after ones death. Everything has to be rehomed, tipped, sold or given to charity.
We started the process during our last big family holiday last summer, when we gave our 2 chldren, DiL and DGC, pens and sheets of paper and told them to walk round the house opening drawers and cupboards, going through the shed and listing anything we had in France that they wanted. We were quite amazed by the items that they laid claim to; items for furniture we thought would be going straight to auction are now in a van on the way to their homes in the UK
My DiL made claim to a pine dresser and the vast quantities of blue and white mismatched pottery that went with it, another item i thought I would have to dispose of.
When it comes to thngs' you just cannot tell what people may want . Let them fight it out for themselves after you have died.