Energetic buzz,
Followed by total downer
WAY too much taurine.

Or how about some iambic octameter (in reverse!)?

Nights like this I wish I had some more good tunes to rock along to.

Limericks are fun too.

There once was a man named Herby,
Who raced in the Kentucky derby.
His horse came last,
He was out on his arse,
But he made a fair bit of cash turning the useless prick into glue.

OK, so not *really* a limerick but I like slamming the door on convention once in a while.