It's not really a big issue to me, but it seems there now is a good "scientific" reason to get out of shopping with your partner. Tell her/him you'll only end up fighting anyway. And offer the proof: http://news.bbc.co.uk/1/hi/business/3115452.stm: "The report suggests men and women should spend a maximum shopping time of one hour and 12 minutes together; otherwise an argument will usually break out. "