New voluntary work

I Have been offered a voluntary job, literally just round the corner from my house, subject to the "normal" police checks etc. It involves looking after the small garden of a home for disabled servicemen  and women. I only need to attend as necessary ,which is ideal for me.it has been a cold and very blustery day today. We ventured into Leicester this afternoon for a new pressure cooker and came home with new wireless phones for the house!  We had to explain what a pressure cooker is to Debenham's staff but they had none in stock. john Lewis staff knew what we were after but they also had none in stock and suggested ordering on-line. Are pressure cookers extinct in shops?