Hi Sue,
It must be incredibly hard for you to run a house as well as having young children. A couple of years ago I bought an electric heating pad which has been fantastic for any back pain I might have. It has 3 settings and will switch off after 90 mins. I bought it from one of the electrical retailers for around $50 and it has been money well spent. It covers the area of my back from my bottom to my shoulders, so covers a large area - not that I mean I'm large hehehe.
It has turned quite chilly here on Bribie Is. today with the westerlies blowing - they usually turn up around the time of the Brisbane Ekka or Exhibition to you southerners. I was one myself many years ago. We are awaiting rain which will hopefully turn up in the next couple of days. Qld was declared to be in drought today so rain will be very welcome.
All the best Sue,
Maggie xxx