"Obviously there's another game left where we'd love to win it outright, but to know that it's coming home - that's extremely satisfying."
Although Smith was forced to sit out the Headingley Test due to concussion protocols after being struck by a Jofra Archer bouncer in the previous game, he has proved to be England's nemesis throughout the series.
Neither should the home side anticipate any let-up for the fifth and final Test of the series, which gets under way at The Oval on Thursday, live on Sky Sports.
"I've got two hundreds from two games at The Oval, so it's a place I do like batting," Smith added. "When you get in there, it's an incredibly good place to bat.
"The bounce is very true and the square across the ground makes it a vast outfield so you can score very quickly.
"We didn't just come here to retain the Ashes, we came here to win it - so we're going to do our best to go 3-1 up at The Oval.
"I want to be the one out there doing my job for the team. I love batting and I don't really like watching cricket - that's my motivation to stay out in the middle as long as possible!"
Tim Paine, who replaced Smith as Australia's captain last year after the ball-tampering scandal that saw him serve a 12-month ban, praised his team's resilience during the series.
"This team's been through a lot in the last 12 to 18 months, some individuals more than others," said Paine, who becomes the first Australian skipper to win an Ashes series in England since Ricky Ponting in 2001.
Posted on September 9, 2019
More Stories on Sports