How Do You Do Fancy?

I never attend cocktail parties, I never go to fancy restaurants, I do not frequent grand galas. Basically put, I need not own a fancy party dress. I do own one toned-down 50s party dress that I wear to Holidays, but that is the only time it sees the light of day.
Imagine my heart break when I put on this dress and it fit like a glove. I will never have a reason to wear this lovely dress so instead I listed it for sale over on Etsy.
This has really got me thinking that I need a reason to get fancy. So tell me dear readers, what do you do to get fancy? Do you own a fabulous cocktail dress? Where do you take it? I am honestly quite curious!