Ok so take 51 things from my list and explain to me how they are in fact the same thing with different uses.Aramax said:Most of them are the exact same thing that are used differently and appear to be different product. Fail.
Water is not a product, only a capitalist would think like that.
What i'm trying to point at is the fact that the question is so trivial that there are no answer. I can only tell you this much; There will be a lot less products but everything is going to become a lot more practical because there wont be any need to make life complicated like a capitalist system used to.
There will be a wider variety of colors and motifs for everything you need because frankly this will become the only thing left to bother with.
Also the question isn't trivial as you claim that there will be no decline in the standard of living. If you're trying to tell me that having a hot bath and heating water on a stove to clean myself are in fact the same then this system isn't really all that futurist is it?