Money off coupons ??? printable?

i am looking to know if there are any web site that allows u to print off money off coupons in pounds sterling, all i can see is in dollars for the usa. My husband has been made redundant and i am trying to save as much as we can, i have a young baby in the household as well as a 10 yr old so im trying to get baby coupons and also grocery coupons for the like of tesco, sainsburys etc, if anyone can help me i will be grateful as we are now living outside our means, thank you