Popeil's Mr. Microphone.
(un)Interesting trivia regarding that scene:
Ron's daughter and boyfriend were in that car. In fact, it's her boyfriend who utters that line (it was improvised). If you can get a hold of a clip of that commercial, you can actually see her smack the back of his head after they're driving off.

Here's a commercial line that's been stuck in my head for years (can you guess what product it was for):
"I'm goin' for the camera... made it!"

How about the jingle for Toyota of Orange:
Well you won't get a lemon (I wouldn't'a got a lemon?)
From Toyota of Orange
Well you won't get a lemon (I wouldn't'a got a lemon...!)
From Toyota of Orange

*Fancy Nancy Fancies Orange Fanta (I had a "Snice Cup" - anyone remember them?)

*Kentucky Cartoon Jingle - all I remember is: "Then Hugo said 'you go' and I said 'no you go'"

I don't wanna grow up, I'm a Toys 'R Us kid,
There's a million things at Toys 'R Us that I can play with,
From bikes to trains to video games,
It's the biggest toy store there is
(Gee wiz!)
I don't wanna grow up cause maybe if I did,
I wouldn't be a Toys 'R Us kid.
(More games, more toys, oh boy!)
I wanna be a Toys 'R Us Kid!

Wow. Did I really pull that whole thing out of my brain?

It's a good time
For the great taste
Of McDonald's.

Bring out the Hellman's,
And bring out the best.

Tum, tum, tum, tum, Tuuuums!

My dog's faster than your dog,
My dog's bigger than yours,
My dog's better 'cause he gets Ken-L Ration,
My dog's better than yours.

Fat kids, skinny kids, kids who climb on rocks,
Tough kids, sissy kids, even kids with chicken pox
Love hotdogs, Armour hot dogs,
The dogs...kids...love...to...biiiiiiiiiiiiiiite!

(Thank you 'Demolition Man', though we never do figure out how the heck they use the three seashells.)

Found It !!!! (Thanks to Corey Doctorow)

KENTUCKY FRIED CHICKEN AD (as remembered fondly by lashbear)

The cows and the sheep and the birds and the horses,
Are mooing and baaing and whistling and neighing.
Having lunch in the sun.
But Hugo and I are having none.
In the back seat, we sat, getting thinner.
A rumbling cry.
"Give us Kentucky Fried."
Time for dinner.

So Dad stopped the car,
And Hugo said "You go", but I said "No, you go"
And soon he was back with a pack.
And Dad hit the track.
And we ate in the back feeling better inside
A drive isn't funny with an empty tummy.
Thanks goodness for Kentucky Fried.

Palmolive dish washing liquid:

Madge the manicurist soaking her client's hand in Palmolive Liquid..."You're soaking in it!"


Beer jingles:

I remember singing this song the first time I got drunk...on Lowenbrau. That was a first and last for me. On Lowenbrau, that is.

"Here's to good friends...
tonight is kind of special.
The beer will pour...
must say something more, somehow.
So tonight...tonight, let it be Lowenbrau.

It's been so long...
hey, I'm glad to see ya'.
Raise your glass...
here's to health and happiness.
So tonight...tonight, let it be all the best."


Miller beer:

"If you've got the time...
we've got the beer -- Miller beer.
Miller tastes too good to hurry through.
But when it's time to relax -- Miller stands clear...
beer after beer.
If you've got the time..
we've got the beer -- Miller beer."


Schlitz:

"When you're out of Shlitz, you're out of beer." Am I imagining this, or was the jingle sung to the tune of Herb Alpert & The TB's "Tijuana Taxi"?

Here's one just for today (ty Flub - I think).

Manly yes, but I like it too!

IRISH SPRING

“They’re always after ‘me Lucky Charms!”