Holzhauer read a book by a former champion who gave some insight into the best practices using the buzzer. Then he came up with his own practice method.
"At home, I actually took an old mechanical pencil and I wrapped a little bit of masking tape around it to kind of simulate the heft of this thing," revealed Holzhauer.
VIDEO: Here are tips to help you win 'Jeopardy!' with Alex Trebek
Of course, being in your own living room is one thing. Being on the "Jeopardy!" set with Alek Trebek, two competitors and a live studio audience is something else! Holzhauer has his own method for staying focused.
"You know, what I do is I close my eyes and I picture me and my daughter going down a nice slide or something together, and it keeps me grounded," said Holzhauer. "It reminds me what this is for."
And while being a million-dollar winner has been great, there has been one other part of the "Jeopardy!" experience that this tough competitor will never forget.
"I got to hear Alex Trebek curse!" laughed Holzhauer.
VIDEO: Is game theory the secret to winning 'Jeopardy!'?