The best piece of advice I can give is: try and speak to someone that's been on the receiving end *.
Chances are, receiving applications and judging them isn't something they've allotted a large amount of time to, and they just want to get a feel for a candidate's suitability in moments. If they're sufficiently intrigued, and want more information, they know they can ask for it. Which is why you make your contact details very visible indeed.
Presenting them with a page - or worse, several pages - of dense paragraphs of "I did this, which shows I can do this..., and then I did that..." will immediately get them internally groaning, and then your CV's got more work to do to convince them.
Also - and I may be wrong here, having not been directly on the receiving end myself - employers are much more interested in what you can do for them, and not so much
what you've already done for someone else. Again, you're selling your skills, not relating your history. Only friends and family care about your history; everyone else has their own history to deal with.
It's also important, as Ekim's pointed out, to be sensitive to the arena. When my design department were recruiting for graphic designers, I was amazed at the number of CVs that were merely word-processed. Admittedly, we weren't offering anything close to top dollar salary, but come
on, supposedly creative types!
Ultimately, it's like web design: give the user the content they want quickly and without distraction. So just like NickK said, only I've used more words and am therefore a failure and a hypocrit
Oh, and don't put "CURRICULUM VITAE" in big type up at the top - it wastes valuable space, and you're telling the receiver the bleedin' obvious
* Well, technically, the best piece of advice is to *watch* them using CVs - people convey more with their actions than they ever can with words - but I realise that's probably not feasible.