Nunu Cheese Strat

I have been doing this since the new runes came out and it works fantastically. I'm sure you could do it before then.

I take unsealed Spellbook for lower smite cooldown. I start my bot side and take my first 3 camps without smiting any of them.

I then take my two charges of smite over to Drag and solo Drag at level 3. Nobody has stopped me once yet and it works every game.

I don't put a point in E. I put two points in Q and one in W. Its a free drag at level 3.

Smite the drag early so you will have second smite up for the finish.

The only downside is you will lose early lane pressure but it is worth it if you can sneak a drag that early. Especially if it is ocean or Infernal