thanks for your thoughts and advice. have almost cleaned the whole house, i didn't realise i had so many hidden corners, and although i won't be doing this every day before treatment i'm sure, it just makes me feel a little better about my first. thanks joli for your advice about the heatpad and tkollie - i will try to plan something nice to look forward to next week. i will try to report sat or sun to let you know how it all goes! i almost just want to get it over with now and get started!