I think I'm checking in too... I don't NEED any cards right now (much as there are one or two I would love to have...), I'm going to stick to trying to 'improve' the ones I have and hopefully see my scores go a bit higher over the next few months. I'd like to say definitely no apping until May 2009 (when my credit history will hit its second birthday), but that sounds sooo far away, it will take serious willpower. Maybe I'll say 'no apping for 6 months' then May won't seem so far away - as I watch each card hit its anniversary and each inquiry do the same, it might be easier to hold off for the next milestone before I think of randomly, recklessly applying for something I don't need!
That said, one good pre-approval offer in the mail, and I might suddenly change my mind... I will need to remember that where there's one good pre-app, there are bound to be more later, and go back to sitting on my hands!