I recently started using an Android app called HelloTalk. It lets you have real conversations with real Japanese people who are learning English. You teach each other through chatting, and by making use of the extremely awesome built-in features.
These features include correcting your partner’s sentences, translating, and transliteration, which shows you the romaji pronounciation of the kanji they’ve used. It’s mostly free, but there are limits on how many times you can use the features unless you buy the no-limits version with in-real-life money.
Just from using this app for the last few days, I’ve compiled a list of helpful new kanji for daily use, which you might like to take a look at. Please feel free to add any you’ve used on a regular basis in actual chats. If anyone wants to re-arrange these into handy categories, please feel free to do that too. (romaji) [english]
It shows the usage of Jouyou kanji on tweets from Japan and ranks them in order from most used to least. I realize that Twitter and Hello Talk differs in what is useful, but could be fun to take a look and see how far down the list you can get before you reach a kanji that is as of yet unknown to you.