What do people put on the inside of shop windows....?

Question

.............(creamy white gunk) when the shop has closed down so that people can't see in? Is it just window cleaner? polish?

Answer 1

I always thought it was a water based paint.

Answer 2

Just old fashioned window cleaner......

Answer 3

My neighbour use this as curtains good and cheap

Answer 4

Windolene is what we used, it's just a brand of window cleaner though.

Answer 5

I've always thought it to be good old fashioned window cleaner.