Unless you are buying a property or making a big purchase £10,000 or more, the exchange rate is an irrelevance because Thailand is cheap anyway.
I always convert money when the exchange rates are good. I converted a few thousand at 46.58. I'm quids in, in theory.
But on the amount I spend in Thailand it's not much.
Oh and for you lot complaining about Brexit, sterling is heading for $1.45, €1.30 within a year and is already super strong against currencies as diverse as the Aussie$, Mexican Peso and Norwegian Krone.
Nothing to do with Brexit. Simply to do with base rates in each country and their future prospects.
depends how much you are changing. The difference adds up on bigger sums and I always carry £50 and $100 bills anyway.
And no super rich aren't the only ones. The ones with the best rates always offer more for the biggest notes. If they don't then their rates are rubbish.