Dieting?

Just about every morning for the past month I've told Tim we need to eat better and are going to be starting a diet.  He's learned to tune me out.  Apparently, for me, "starting a diet" means eating oatmeal for breakfast, skipping lunch (because healthy options take way too much work), and totally abandoning ship for dinner because I'm A: too tired, or B: too lazy.  Just last week I gave my morning soapbox speech yet again, and that very night we had pizza for dinner, the next day we made brownies, and the night after that, Tim ran to the store for nothing but Twinkies and Cupcakes.  

Yes, we were thrilled to see Hostess make a comeback and we are not ashamed to admit it.  I know, I know, they're terrible for you.  But my goodness, it's childhood in a wrapper!  I used to live for a trip to that day-old Hostess store and can still smell the sweet scent that hit you at the door.  Every kid needs to experience a Twinkie!  I guess we're still just kids at heart.  The boxes were empty the next day...

I am hoping to stay motivated about better food one of these days.  Anyone have any good tips or meal ideas?  Pizza is just too tempting for us.