I had to laugh when I came across this posting today on All The Best (blog link right). How many times do we all need this reminder? It's a surprise they haven't made wallet-size versions, for a little bit more of a stiff upper lip when opening the checkbook. The poster is a silk-screened replica of the original WWII British government propaganda. Found by a perceptive second-hand book dealer, the rare copy was hung in his shop and generated quite a lot of interest. He began reproducing the posters, and now has a website devoted to items with the slogan (title link above). Hang this up in your house, and the next time you're tempted to shout, "get a grip!" try this more commanding phrase. If nothing else, you'll sound as if you've gotten it all together. More detailed history from the Telegraph, here.
I like this formal yet fanciful version by Ivan C. Reyes:
And also the strong graphic quality of yellow and white (photographed for the blog Bloesem):
