Since boarding school, I’ve never had a problem with packing, simply taking the minimum I am likely to need (+spare underwear). It helps being totally uninterested in clothes. Having said that, I almost always end up with a couple of items I discover I haven’t worn, things like an unnecessary cardigan for a Med. Cruise. I don’t think I would ever take more than three pairs of shoes, unless going to somewhere very cold, where I needed robust walking shoes. What would be the point?