I used to spend a lot of time speculating and hoping to catch the dollar at the 'right' time until I realized that for every $1,000US I'm spending on a Disney trip, the exchange 'only' meant a $10 difference per $0.01 that our dollar changes. That's a few cups of coffee at Timmy's.
I was spending far too much time checking to see if it went up or down. Over the years when our dollar has gone from being on par to where it is right now, that's a HUGE difference. But, the little bit it goes up and down right now isn't worth me trying to catch it at just the right moment. It's just kinda bumping around and I'll have to pay the current rate and no longer stress about what it might or might not do.