I've read a number of stories on this website and compared to them, mine is not all that good. I have two stories to share. My first story happened to my mother and sister more so than me.
We moved into our second house when I was around ten or eleven years old. The previous owner was an old man who smoked cigars. During our stay, my mother mentioned that she could smell cigar smoke. Thereafter, whenever we moved house other than one home I lived in for a few months she could smell cigar smoke. She asked if I had been smoking but I said no and no one else smoked.
Another time this happened was in the house we live in now. We have a porch in front of our front door and my mother and sister walked in and at the same time they both looked at each other and said "can you smell smoke"? (cigar smoke in particular). The weird thing was that I couldn't smell it.
The second story I have was maybe a year ago when I was staying at my ex-girlfriend's house.
The layout of the house is as follows: Walking through the front door you have the stairs right in front of you. The door to the front room is on the right side. When you walk through the door, you are in the middle of the front room and the dining room. Turning left takes you into the dining room and then the kitchen. Going up the stairs you come to the bathroom straight ahead and then turning right you have two bedrooms, her sister's bedroom is on the left and her mothers bedroom is straight ahead, the second floor is the same with my ex-girlfriend's straight ahead. My ex-girlfriend and her mother had mentioned hearing strange noises coming from the attic. The previous owner who previously lived there hung himself in the attic. Her mother did go up once and saw the hanger were he hung the rope which freaked her out.
My experience was when I went to the bathroom, half way through I heard a knock on the door, now my ex's cat can knock on the front door but this was a hard knock and higher up on the door, so I knew it wasn't her two cats or her dog. I shouted out "hang on". When I came out of the bathroom. There was no-one there (usually whoever it is waits) so I assumed whoever it was had gone downstairs.
My ex was in the front room watching TV, her mother and sister were in the kitchen and her brother was out I believe.
When I came in I asked if my ex, Kayla if she needed the toilet, she replied no, I then said "oh it must have been your sister or mother", but she replied no they've been down here with me.
As you can see mines are far fetched to be a paranormal but at the same time I'm thinking who was it?
Thanks for reading