yeah, thats what I do!!!
JustUnfollow is a small and light twitter app made by your’s truly that lets you unfollow twitter users who do not follow you.
I’ve had a lot of people asking for a tool like this so ended up making one! I made it in order to suffice my needs as well as for anyone looking out for an app like this. But I never thought the app would be loved so much by twitter users!
JustUnfollow has had hundreds of tweets where its mentioned and to be frank I read only one bad comment (must probably be from a spammer!). Every other twitter user who’s tweeted about JustUnfollow has had something nice to say about it!
Hope you give the app a spin. In the last 2 weeks, JustUnfollow has been featured on TechCrunch, MakeUseOf, KillerStartups and many other blogs and websites.

Sarah Grainger
April 29th, 2010 at 10:50 am
Nice one, although you can do this with Twellow.
Nischal Shetty
April 29th, 2010 at 3:16 pm
@Sarah I guess so. But this was created by me so u better use it
Pleaseeeeee
Sarah Grainger
May 24th, 2010 at 10:41 am
I use it every day
Mimi
November 16th, 2010 at 1:30 am
I don’t really agree with this because I follow people whose tweets are relevant to what I’m interested in so if you are tweeting about poetry and you follow me I’m not going to follow you back. It will just create a flow of unnecessary tweets that I’m just going to get annoyed with because it’s not interesting to me. And to be honest if you have to create something o un follow people who don’t follow you just says to me that you are more concerned with quantity than quality and I’m the exact opposite. Bu if you (general public) have a problem with the rest of us not following you back then by all means unfollow you won’t be missed anyway. Just my opinion.