30 Days of No Sugar and No Grains... HELP!

So I've kind of been interested in food lately.  Where it comes from, how it affects our health, and how people were "meant" to eat (if such a diet exists).  A good Friday night for me lately has been watching documentaries like Food Inc. or Fat Sick and Nearly Dead, or surfing interesting blogs of known Paleo diet health nuts, like Mark's Daily Apple. The truth is, I've been reading about the Paleo diet for awhile.  I've even been talking about the benefits of grass-fed beef and the symptoms of gluten sensitivity to my friends (seriously? who does that?).  My mouth waters when I think about coconut flakes and dark chocolate and fruit and other Paleo-friendly desserts.  I am already pretty excited about the idea of eating better.  The truth is though, even though I'm excited about it, I haven't been able to give up the idea of eating bad food SOMETIMES.  I like to eat bad foods at least once a day, if not more.  If I have a bad day, who's going to the snack bar to buy a Klondike bar?  Or who's grabbing a donut just to make sitting in her cubicle a little more exciting?  THIS GIRL.  The problem with this set up is, my blood sugar is always crashing and/or I feel a little sick afterwards, and I struggle with fatigue.  I am also famous for coming up with fabulous ideas for new projects or hobbies and workouts I want to do, but then never following through.  I know there's room for improvement.  You can't eat 1-2 healthy meals a day and expect magic to happen.  I want to see what happens when I eat healthy 100% of the time.  I can survive 30 days without junk food...I think. So when I saw the 30 day Primal Blueprint challenge on Mark's website, I knew I had to do it.  I start September 12.  So here we go!  30 days of Paleo!