I’ve been forced to learn how to deal with “DAAAAAAADDY!” whatever I’m doing, so now I try to do as little loading of state into my head as possible.

Part of that is meticulous notes on what I’m currently doing and planning to do, lots of “todo” comments and comments in general, etc.

The other part is just learning to live with interruptions through experience.

Some people might not have the same success, your mileage may vary.

I've got a set of sand timers (1 to 30 min) to handle such interruptions. Depending on how long it'll take me to finish what I'm working on, I'll just use one of those timers as currency to buy me the couple minutes I need to git commit my way out.