This was quite an interesting find. I was going to a a post on the CPI inflation basket, although actually CPI and RPI are pretty close in correlation this year - with RPI being a little higher but moving in line even given housing prices and lending going up. With Help to Buy early next year, this correlation will probably start to widen.
What I did find though was this personal inflation calculator which is quite interesting and makes for an interesting view. My own circumstances have been very trying this year and I can see why as when I input my personal spending patterns it shows me having to cope with a personal inflation rate of nearly 8% for the past 18 months - no wonder I have to be hard working capitalist.