I'm exploring my way West from Falkreath right now. Got a bit bored of doing quests so set forth from some random out post.
Most fun I've had in the game
2 Dragons (one named, can't remember but it began with a K) within minutes, 4 Giants and 3 Mammoths destroyed (Fus Ro Dah'ing Giants is my new favourite thing), found a puzzle that led me to unlocking a small underground chamber with a chest that had a +1 Destruction book.
Filled a few gems with souls, although I had none big enough for the giants
Any easy way to get Grand (or bigger) soul Gems?