I was thinking about the Red Plum coupons and the reason I buy the Washington Post each week. Currently, I have a subscription and will be canceling it soon since I don't have a weekly discount anymore. Instead I will go to the store and get the Sunday Double Deal on Sundays. There will be some Sundays I might not be interested in getting it, like the Holidays don't have coupons. So, in the long run I will save by only buying the ones that I want. There are some Sundays that it makes sense to buy more than one or more than two. I will try and write a post on Saturdays to say if it makes sense to buy the paper or not. This week you should! Sunday…