Much of the stuff in pilot shops is useless rubbish, which might get used a few times and then never again.
That's before you get to things like £500 leather jackets and "pilot" watches
But I might have to buy a pilot uniform.... it seems that most IR conversion options are at schools which mandate it. That will be about £100 and will go on the bonfire immediately afterwards.
BTW, I haven't used the 1:500k ruler since I got the PPL