I went out just now to put washer fluid in my car - and am pleased, as I also spotted this -

I have now pumped it up, and am going to leave it 1/2 hour to see whether it will hold, or if I will have to change it before driving the mile up the road to the shop.
Luckily (although I didn't think so at the time), Dad made me change a couple of punctures even before I passed my test. The last time I had to do one was at midnight in the pouring rain - so al least I won't have that if I have to do it today.