Here's another austerity cartoon, from the same Pick of Punch annual that I wrote about in "Austerity Patchwork". I put some references at the end there explaining the history of WWII clothing restrictions. I don't know the significance of August, but maybe it was the first month after publication that readers would have been allowed to obtain new coupons.
Two clothes moths are on a jacket hanging in a wardrobe. It has holes in. One moth is saying to the other 'Careful, dear! This one's got to last us until August!"