<prompt> Human: I am in Australia with about 5000 AUDI will be heading home to the UK in the coming months and want to obviously get the best rate for my dolla.Every time I see a brexit induced crash in the pound I begin to worry that i should be taking advantage of a weak and quickly change my money. This morning I woke up to news that the UK had seen a flash crash this morning of 6 before stableising to a 1.5 decrease.So:-ELI5 The best way of going about exchanging currency, and will the timing of my exchange really make any kind of impact on my 5-ishK?  <response>: Timing markets is a losing battle. By the time youre seeing that its going down, its too late. Just use transferwise or something similar to mitigate fees and move it when youre ready. 