Quite a while ago, maybe a good few months ago, both me and my fiance saw the same thing on separate occasions. It was during the day so it wasn't dark and no one else was in the house besides us.
I was in the bathroom which, from the doorway, looks down the landing and into my mum's bedroom. From the bathroom, I can see the foot of my mum's bed, part of the bedroom window on the wall behind the bed, and a little storage box that sits at the end of her bed.
So, as I'm in the bathroom, I happen to randomly look into my mum's room at just the right moment to see a partial apparition of a woman, the bottom half of her body to be exact. I saw what looked like an old Victorian floor length skirt or bottom part of a dress with what I think was an underskirt. She may even have been wearing a corset or something to cinch in her waist. It looked heavy but it swayed with her movements as she walked from the side of the bed nearest the door, towards the end of the bed, around the storage box and towards the furthest side of the room near the window where she sort of just disappeared. She didn't fade out, she just vanished. As if one second she was there and as soon as I blinked she was gone. I also never saw her feet because they were either under her dress/skirt or they simply just weren't there. (I never said anything about this experience to my fiance, and kept this to myself as I at first doubted what I'd seen)
It was only a few hours later and my fiance was telling me about how he'd seen a partial apparition of the bottom half of a woman who was wearing an old heavy looking dress or long skirt. I couldn't believe my ears - he saw the exact same thing and even described it to me in the exact same way as I saw it!
I've never ever seen anything like this before in my life either prior to this event or afterwards. This will always be my best paranormal experience - I just wish I could have gotten this on camera!