I think the three oldest items must be a clock that was a wedding present to my maternal great-grandparents who married in 1879 and a brass candlestick, plus another candlestick that holds 3 candles that likewise came from their home.
Two of my Christmas tree decorations are from their home too, but obviously I don't use them every day.
From my father's parents home, I have a writing desk that I know was a wedding present to his parents, who married in 1913 and a earthenware casserole dish with lid, that I imagine was likewise a wedding present to them, as it is of a French make that was not available in Britain then, but they lived in France until the outbreak of war in 1914, when Grandpa went into the army as a liason officer being bilingual English-French and Grannie went home to her parents in Edinburgh as she was expecting my aunt.