Depending on your location, spring may have sprung months ago. However, if you're in a place like New York or Boston, spring arrived only last week, so this post isn't that late :)
I've learned that work-appropriate backpacks are a highly-charged topic in this community. The current continued through a deluge of upset messages, when I recently suggested that I found the perfect backpack but that it was sold out everywhere (I'm very sorry, you can borrow mine!).
So to make it up to you, I found three other great backpacks and built entire outfits around them.
Will you forgive me now?