Well I went to Halfords after work and there was just sooo much choice I got a bit overwhelmed, kept picking different things up then putting them back

so in the end I bought a bottle of triplewax 'wash and wax', a sponge (probably should have got a mitt but cotton or microfibre? The microfibre ones felt weird) a chamois thing in a tube

and they had buy one get one free on the screenwash so i got some of that too.
Is this shampoo going to be ok? Also, can I use normal household glass cleaner on the windows? (like windolene type stuff?)