I am gradually decluttering my house, and I am finding that decluttering is not for everything - for instance:
I have more clothes than I actually need. Assuming that I have finished decluttering in this part of my house, the clothes are all worn every so often, and each piece will eventually become worn out. So there is no need to declutter further even though I may have 7 pairs of identical trousers rather than just one pair. Note that I make my own trousers, and have been wearing the same pattern for at least 20 years, and cannot see myself changing.
I have more books than I actually need. However, I find that the library doesn't have many of my favourites that I re-read every so often (particularly SF - where many titles just don't stay around for very long), so it appears that I need to keep many books I could otherwise borrow.
I have a record and cassette tape collection. Some of these should be decluttered. I am in the process of acquiring a means to transfer these to digital media. Once that is done, do I need to keep the original, to prove I am not a pirate? Also, it will take many hours to transfer the pieces I want to keep to digital media, and I think I should declutter this as I do the transfer (otherwise I am being inefficient). Is it really worth decluttering these things?
There are also things I use several times a year, but this is highly seasonal. However, the decluttering gurus seem to say you need to only keep things you use at least once a month - what about clothes for winter, or bathers which are only used in summer?
Do you have instances of things that you don't declutter, and why? Ir things that are difficult to declutter, and what your decisions are about those things?