I am going to a 30th birthday party on Friday in London - it's a work friend of DH who I've never met, I just know that he and his fiance are very posh and the bar looks horribly trendy. I have absolutely no idea what to wear - it is over five years since I last went out in London, I am SAHM who lives in jeans and jumpers. Please please help, just give me a few pointers on what might be acceptable? Is fine for DH as he'll be going straight from work with lots of others all in their suits I think. Thank you!