Hi and welcome!!
Good for you and wanting to give this a go.
My advice to you would be "be very carefull"!!!!
We started part time (and still are) wanting one saturday a month.
Its now got to the stage where we have a shed load of work with new customers asking us to clean everytime we go out!
Find what works for you, that goes for advertising, quotes, collecting your money and running your business.
Finally never be afraid to ask....we did ...we still do.....the great thing about this forum is that we all help each other.
So go for it and be carefull as your going to be an outstaning success.
All the best
Sunshine