Have I missed something obvious here?
I feel that it would be great to have a section of the website dedicated to cashback sites. % and actual amounts.
Whilst people tend to only realise cashback increases (etc) when looking for an item I believe some people can be swayed by what is actually on offer for utilities etc
An example would be -
Today I almost signed with British Gas and then noticed NPower were offering £100 more than British Gas.