My admiration for this puzzle grew as I studied it. (And as Jim politely nudged me.)
At first, it didn't seem to have enough of a reason to be a rebus. There have been so many of them over the years that you need a great raison d'etre. Couldn't you do the same concept with single letters?
(Well, no. SQUARE ONE is a single square. So if you're going to use repeated words, not letters …)
Ah. Well then. Why those particular phrases? Granted, they are all colorful; jazzy. But there are dozens of them out there.
(Besides the ones Lewis mentioned, what other ones can you think of?)
Huh? LOTS OF THEM! Like … uh … TIME AFTER TIME! Take that, Canadia!
(Okay. What else?)
I have MANY others. I just don't feel like revealing them. What others do YOU have?
(I didn't say I had any.)
BAH, NO WONDER WE'RE BUILDING A WALL!
(You know that Canada is to the north of America, and—)
Double bah, back to the puzzle! I appreciate when rebuses introduce fresh phrases that aren't usually seen in 15x15 grids. Awesome use of a 20-letter one, YOU CANT TAKE IT WITH YOU, to match BACK TO SQUARE ONE. DO AS I SAY NOT AS I DO is something I tell newer constructors all the time. And BOND … JAMES BOND is so evocative.
And great bonuses. SNAKE OIL matching ANACONDA, plus CONEHEAD, ON SILENT, BAIL BOND, YES WE CAN, TWO TERM. I had reservations about the JAMES BOND / BAIL BOND dupe, but they're different enough meanings that I let it slide.
As for KOPF NGO ONEA SALA TRE, they collectively made for not as elegant a solve as I like, but it's a reasonable trade-off for all that sparkling long fill.
A wealth of clever wordplay clues, too. [House rules may not apply here] for the SENATE? So innocent, so wickedly smart.
It's rare that I give a POW! to a rebus puzzle, as rebuses generally feel a bit lazy to me; constructors not able to come up with good single-letter ideas. So it's high praise for Lewis. Strong idea and entertaining solve.