f*ck deliculo, really, That i have been fighting? in my world it was ratzinger and ownchef helping the male line. but i digress, yes old homes, old furniture,etc. they all are nice homes for energies that can be very annoying ( or nice and helpful for that matter).
@WisdomAddict: i think your friend is right, but after a cleaning i also always have the feeling of needing to clean more. i think its a fine line between need to clean and fear of dirt. to me it helps to give in a little to that fear, so you learn to feel the difference. so in your case i would clean the surface with a bucket of water with lemon juice/vinegar in it. it cleans your home naturally, but is also a negativity cleaner in the occult sense and you can use it whenever for whatever as its neutral.
if that doesnt bring you rest, you could also use florida water or rose water, but that has more to do with the smell that could ease your mind then with the cleaning of the furniture.
a mind at peace makes the dark energies leave.