I keep a bristle from a wire brush with a 'handle' made from a piece of Sellotape in my S. I have the 'handle' secured under the rim of the lid of my cherry chapstick so that I don't lose my 'tool' as it is tiny.

 

For some reason I wanted to say Phnar Phnar when I read this

 

I took mine off recently and ran the jets under the shower at high pressure to unblock it as a pin didnt seem to work.

 

No 2 son says try an air line, thats what they do on trucks!

I had very smelly screen wash, tried everything including the pink bubble gum screen wash, but in the end it was a Milton baby bottle sterilising tablet that did the trick