I wimped out of going to a friend's birthday at the weekend on the grounds that I have nothing in my wardrobe that falls into the 'going out' category.
I have work clothes, wedding outfits (x3) and 'toddler mother warrior' gear (scruffy jeans, cotton & jersey tops)
If you could buy 3 items to cover meals out at decent restaurants, dinner/cocktail parties & drinks at wine bars what would you chose? Not shoes, I have shoes.
Ideally things that aren't going to date, and could do all seasons (because it's not like they are going to get worn ever weekend!)