Don't really do formality nowadays, had enough of that in previous life, having said that, if it's something OH really wants to attend I'll make the effort.
I have a whole wardrobe full of formal evening wear but no LBD. However, by the time we are on the 3rd function, I am fed up with it, fed up with not knowing what to wear, fed up with Mr BM taking four hours to get ready and fed up with making small talk with people I don't really know or like that much. I think I'm just grumpy.
I used to love the dinner/dances that I attended when I worked for various law firms in London. Always held at hotels in London - Savoy, Dorchester, Ritz etc etc. It was lovely to get all togged up in an evening dress and see your boss in a monkey suit, looking smart.
I've never managed to find an opportunity to do something naughty for the BF under his kilt, LOL. Maybe this year ... :0) ... if maybe there's an empty lift or something? :0)
Weddings are good for that type of thing, JJ. Especially the summer ones... Mr P and I were at a posh wedding at a golf club. Very nearly got caught up to no good behind a rhodendrum (sp) bush by the bride's mother. Happy days.