Yeah, I only think in sats. It's just the euro price doubled and with 3 zeros added on. I can do that really fast, in my head.
Like, if a cup of coffee costs €4, then that's 8000 satoshis. Easy.
Another one I did is figuring out that €25 is 50k sats. (25*2*1000). That's my "should probably pull it into LN self-custody" level. And 100k sats is then €50 and that's my "should probably pull it into hard wallet" level.
I just picked €25 because that seemed like a pain point. That's a dinner at a restaurant or a steak from my butcher. Half a tank of gas.