[michaelmior]

Or Buffer http://bufferapp.com/

[nit3ch]

Actually there are lots of option available already with lot other featured, but this one does only one thing and its a kind of MVP :)

[jkestner]

As someone who can't figure out Buffer, and doesn't want a product when I'm looking just for this feature, I appreciate the sentiment.

[nit3ch]

can smell a fanboy ;)