Duh!

Ever had the feeling that you completely missed out on something that has been right in front of you for years? Then one day, we found out that it's too late to go back or silently cursed out "Why didn't I know this before? Duh!". For years, you are aware of its existence, you pass by one building every single day on your way back to home, or you know this person as an acquaintance for a long time. One day, something sparked in your head that made you want to explore around. You go in the store and find out it has the exact thing that you've been wanting to find for a long time. A voracious reader walks by a nondescript building but didn't realize it has a bookstore inside. Or you live by a building that offers a multiple array of interesting courses that you could have signed up years ago. Or you got to know a person really well, and realized you've been missing on years of great relationship with that person when you were acquaintance. They say, we don't treasure things until they're gone. Sad fact is, if realization hit when they're thisclose to being gone, then you scramble.

Duh!