I use Cetaphil cleanser for my face, which is great as it's non-soapy and doesn't dry out the skin or upset it in any way - it kind of lets the skin be itself. Of all skin-care products it's the one I recommend most highly to EVERYONE.
I also get facials regularly (monthly): not the smelly aromatherapy (crap) oily kind, but rather more clinical ones. I've only had Guinot facials for years now - they just work best for my skin (and their high-frequency treatment is ridiculously effective for spots!).
And I always tone and moisturise. I used a great Vitamin C serum from Anew (get it through Avon) at night when I was at uni, and after a couple years of not being able to find it and having less clear skin, I just sourced it and started using it again last night. For the day I use a Guinot moisturiser. I try to exfoliate with gentle products but I tend to get a bit lazy and forget about it for weeks at a time. Now, St Ives Apricot Scrub feels freakin' awesome but such rough scrubs aren't great for your skin, unfortunately. And when I'm feeling a little like a breakout might be sneaking up on me I put on a mask of Noxema and enjoy the refreshing tingle. I think using it too frequently can CAUSE breakouts, though, so I try to minimise my use of it.
I tried Clinique a couple years ago, and though some of the products I thought were great (eye creams, that cool pore minimiser stuff), the overall regime did not agree with my skin (worst complexion of my life). I don't think it was gentle enough.
All that being said, drinking water, regular mild cleansing, moisturising and above all SUNSCREEN are the most important!
(Have just proof-read this post and it sounds like I am completely obsessed with my skin. I'd like to deny it, but I suspect it may be true....)