Anyone wearing slippers later in the reception, I've seen many brides put them on later in the evening to be comfortable on the dance floor. Won't the dress drag on the floor if you were wearing heels? And where do you get the bridal slippers, that look decorative?
There's also those cute chinese mesh slippers that are sold in a bunch of inexpensive stores for $10 or less. I bought a green pair for a halloween costume, but I don't remember the online store. But you can just google it and find a bunch of stores. They come in all colors and (usually have sequin flowers on them), so you can even get some to match bridesmaid dresses. I was thinking of doing that so the girls don't have to wear heels all night.
