As with any other business the level of earnings will to a big extent depend on the individuals ability to market themselves and the amount of time and effort put in, I've read on here before people saying that its down to creating a perceived demand, if someones pipes have burst they need a plumber, not want a plumber, if someone notices their carpets are dirty half way through the month then they may well say I'll get them done come payday, come payday will they remember, probably not, theyve got money in their pocket and theyve got better things to do with it, Andy