A 50th is special - I think I'd be a bit upset if dds did nothing, but then I doubt they'd realise if we didn't tell them.
We had our 45th recently - happened to be exactly the same day as an extended-family wedding, so that made it a bit special.
However best anniversary for me was one I hadn't even realised was happening. Dh brought me a lovely bouquet for no apparent reason, so I was nonplussed - until he explained that it was exactly 50 years since we'd met.
Although I remember the occasion very well, I wouldn't even have had a clue about what month it was!
Parents-in-Law. What do/did you call them?
Gary Glitter programme Tuesday