I have resorted to placing multiple commands on a single line in order to shorten the overall length of the sketch. Most code structure nazis cringe at the thought of this, I'm sure, but it has become a necessary evil to me.
I usually pay attention not only to code structure, but even to the number of blanks between a closing paren and an opening brace.
I even align comments.
Trashing code structure just to "shorten the length of the sketch" is a very, I mean VERY bad idea. You're trading a fundamental code maintenance requirement for the nuisance of scrolling through a long text file. The "necessary evil" you're talking about is learning how to split a sketch into multiple files or, better yet, learn how to write libraries (this site has a very good tutorial).
