Fifty square meters, that is our floor space at our bungalow. When we downsized from our house in the 1990's much of our possessions were boxed up for the move. Some of it never came out of those boxes and got put up in the loft!
Then we went to live in a Narrowboat and more stuff was packed in boxes again and put up there. Now we are back in the bungalow and need to sort it all out! A lifetime of pictures and memorabilia. We had learnt while on the boat that if we had not used something for a year we did not need it and it got 'lost'.
It is more difficult when family history is concerned. Must keep that family tree info to pass on down the generations for that is where it came from.
Our loft or attic is part boarded out so stuff could be stored there. The insulation is about 3 or 4 inches thick and the latest recommended thickness is 11 inches! So another layer is to be put on top. The cost is not substantial and government handout rules changed so if you are not on benefit you get no help at all.