I don't have any in the house I am in now, but in my last house, I used to see white whisps walking around the house all the time, and my daughter always spoke of the angels in her bedroom.
I also shared an apartment with my sisters, years ago, and every once in a while, my sister would see a woman and a small girl standing at the foot of her bed in the middle of the night. The house was very old. The landlord told us that it used to be a doctor's office, and many people had passed away in the office. It was before the emergency room days. We were wondering if they were just still lingering.