Smells that are pretty awesome to me:
The smell of baking cookies and pine, which is always associated with Christmas to me.
The smell of freshly cut grass is always nice, especially in the morning!
The smell after a rainstorm, has a refreshing smell to it.
The smell of the ocean.
Oooohhh, also, for those who have been to Universal Studios, the old E.T. ride... the smell in the forest that they use is amazing! Nothing like it. lol