You've done wonders for my piece of mind!
Just printed out your spreadsheet and made my way to my favourite super market here in Kuala Lumpur. And guess what- to my huge relief I find prices are comparable - in fact in some places Doha is actually much cheaper.
Here in Kl, dairy products have gone through the roof - i find items like mozarella chees and cheddar are actually cheaper in Doha.
So, would like to say a big thank you for taking the trouble to post this.