I don't have unlimited texts so I really try to keep it to when I have to get in touch with family. I find it a LOT more tedious than typing anyway, so when I want to get in touch with a friend I will use skype (unless I'm not home, then I might text).
I'm on facebook but I don't really use it, I only browse through when I'm pretty bored. The arguments on there can be pretty hilarious to watch though hehe.
I avoid Facebook like the plague...My aunts and mom flood the timeline with the most useless junk.
What's tedious about texting is when auto-correct is turned on. I type much faster and more efficiently without it >>;; And I'm the same with Facebook, but most of the time I'm using it to communicate with Dipu :P