Stashed in: Best of Imgur, Comics!, Wallpaper
The Original Poster is taking requests and will be adding to the collection.
You can find the collection here: http://imgur.com/gallery/wGZUA
Found a different collection.
The others in this collection are not Calvin and Hobbes: http://imgur.com/gallery/HXabX
Magpie taunting owl downvote gif
The Yellow Dog Project: This is a dog who needs some space.
Best thing ever for parents: Toilet hook.
The results of your stool sample are in...