Things that go 'bump' in the night

I'm pretty used to things that go 'bump' in the night as i live in Wallington, a small place inbetween Croydon and Sutton, just off the high street. Every night as i am dropping off to sleep i am kept awake by the tourettic-bawls of drunken chavs as they leave the pubs and head home stand at the end of my road.

However, i think we may have a house ghost.
Well, i *say* that, what i mean is there have been some strange happenings in our house.
I live with a close friend in a flat share and have lived there for nearly two years now. During that time, the house has been quiet, that is up until just recently. Over the last couple of weeks, both my flat mate and i have been experiencing 'things' disappearing. However, the most recent occurrence will take some beating. There is a line of fresh candle wax cutting a swathe across our lounge carpet.
This probably wouldn't be out of place in most households, however, neither my flat mate or i have lit a candle since before Christmas and this wax is new.

What makes this all the more strange is the fact that it is not the first time i have experienced such things. My mother died when i was young and shortly after her death, i experienced the disappperance of many items in the house. My mother had been a hairdresser and ironically, my brushes and combs and other items kept disappearing. When i say disappear, what i mean is i would be brushing my hair, put down my brush, spray my hair (it was the eighties), and then go to pick up my brush again and it would be gone. I would find said item in odd places weeks later like under the bed or at the back of a cupboard. I got pretty used to this happening and after speaking with a family friend who had spoken to a spiritualist, believed that it was my mother just reminding me that she was still here.

What makes the discovery of the line of wax even more interesting is the fact that it seems to 'start' from the photograph i have hanging up of my mother.