I'm sure you'll look fabulous, even if your dress isn't "floaty" enough for some tastes ...!!
When I read Vogue & other fashion articles online, or stuff on Instagram catches my eye, it's often the posts about accessories that most interest me. As a change of footwear or belt or bag is frequently all you need to do to update things, I find.
I am currently really enjoying the vogue for scarves & brooches, as I have lots of vintage ones. And have just found an old pair of mules that look totally of the moment!
Hopefully there are some ideas on here for some other useful purchases - but in the meantime, I hope you have a delicious garlicky meal & a great 4th date!