You could work the same hours (per family) today and still have a vastly higher standard of living than people had in the 60s. You might have a lower standard of living than your neighbors, with 2 earners, and that's mostly what people care about, but that's a relative, not absolute, measure. And we are absolutely doing better now.
I understand your point -- please don't jump up and down saying I don't get it. I disagree with it. You are correct that your money today, even in nominal terms, can arguably buy more value in manufactured goods. That may or may not be true, but it is only a small subset of what we buy. Manufacturing (both what we buy and who we employ) is a constantly decreasing share of the economy in most countries -- including some in the developing world. Services can generally be grouped into professional and unskilled, and there are more and more people looking for fewer and fewer unskilled jobs.
Others are correctly pointing out that the important criterion is what the person with the median income can buy. That excludes the education many of us older folks got, the DB pension our parents got and many other things. Medicine is probably a wash, depending on where you live and in the US your coverage.
There is, tragically, no doubt that the median earner has experienced a decline in his standard of living. Real median incomes are declining, and the cheaper cost / higher functionality of manufactured goods today is not enough to compensate.