I'm off to the USA in a few weeks. I'll be minimising all expenses.
Though on the flipside... the US staff get a $300 per night hotel budget, and that now buys a really freaking nice room in a London hotel. I might ping someone and get that allowance reduced now that GBP slide is so significant.
I've just done my expenses from my trip to Colorado last week, the exchange rate is against each purchase and you can see it drop from line to line.