If you have the moxy to waltz into a store like Harrolds, try on a heap of Kiton and Tom Ford stuff and then leave without buying anything, then I tip my hat to you. You might be able to get away with it once, but considering these places hardly have the foot traffic of Coles you will soon be made as "they try-on-no-buy guy" and treated accordingly. They're sales assistants, who cares what they think. One visit would be enough to try on a few different jackets in a couple of different brands to see what suits you. People do try things on and not buy them you know. You don't have to spend hours in there.