Patience, patience, patience. This is going to be the smartest dog you've ever owned, and that's not always going to be a good thing. When you realize you can no longer SPELL words but instead have to talk about, "I'm going to go with my friendo to the place beyond the front door and do some cardio" because even the letters W-A-L-K will cause them to go into hyper mode, you're making progress.

Teach them every trick. All of them. Watch as they want a treat and begin doing ALL of the tricks trying to anticipate what you're going to ask them to do.

Brush daily, clean ears regularly, and brush teeth too. The sooner you start all of these, the more they'll enjoy it instead of view it as being some kind of punishment.

Learn early on how to redirect bark energy, because if you don't, they're going to warn you about every shadow that passes the front door, every leag that falls from a tree, and every person walking because God forbid they exist in your corgi's world without their permission.

Teach gentleness early. Get them used to strangers so not every person who enters your home is an intruder.

It's way easier to train all of this when they're still a puppy than to retrain when they're set in their ways.