To be perfectly honest speedy, no one would simply write what takes place, for fear of people getting into a mess. It is something where you need full and appropriate training for in my opinion to be bother effective and safe. There are many things you can do to try and settle problems smudging, disturbing vibrations to name a few. You should never do it by yourself and if ever you are properly trained to do it you will have experienced people with you all the way. Like I say some minor energy dispersion techniques mentioned above are ok to do, but if you can it is worth having another person present to witness anything unusual. That is the other point about experienced people doing, if needed a full spirit or energy clearance, some very negative spirits can become more agitated and this is where the years of knowledge and experience come in. I guess the thing not to worry about is that it is something you have done that has caused this to happen, it usually isn't. People visiting, old objects brought into the home, historical events can trigger activity. Obviously something has caused you to think you need to do a clearance, so perhaps you could elaborate on what you have experienced and we can guide you a little better.
Brightest Blessings