On correlating multiple pairs: how do you manage?

Daily open thread -- hope everyone's having a good start to the week. Quick question for the veterans: when you're watching, say, $EURUSD, $GBPUSD, and $USDJPY, and you see setups forming on multiple pairs that all involve the USD as the common denominator, how do you manage your risk sizing? Do you treat each as a completely independent trade with its own allocated risk, or do you somehow aggregate the USD exposure and scale down if you're taking positions on more than one USD-centric pair? I've been wrestling with this idea of correlated risk and my own position sizing when multiple good opportunities come up, and I'm curious how more experienced traders handle it to avoid overexposure to a single currency.