Is there any software out there that stores user names of people that you have already followed so you don't follow them again? For example I follow 100 people and 50 follow back. I then remove those 100 I'm following and repeat the process, I don't want to end up following people multiple times. Is there software that can do this?
As far as I know there isn't anything that does that. You should be careful and take it easy on repeating the process. You can get in trouble for that.