Well I have just done my first day !!
The shop - sadly - was very quiet but I loved it. As it was quiet it gave me a great opportunity to familiarize myself with everything and learn how my friend deals with everything. I think she was pleased with me as she sent me an email - thanking me for going in and will be sorting her rota out. I will be working just a few days a month - when she needs cover etc. It was great to be "out in the workplace" again.