Kanon (2006), H2O: Footprints in the Sand Recommendations
Same make of Clannad. All of their work is very sad, and all a Slice of Life. I recommend this even if you dont like this anime. Its just plain fantastic
They both have kind of sad storys, but they are both good. (at the last episodes see after the ending song too)
These are similar because they make you think, they provoke you and try to relate to you. It's very touching so I suggest them to you.