I have over 30 rulers! I use 3 rulers. Most of my rulers I have never used. I am a sucker for rulers. I don't know why but when I see one online, I think I can't live without it. I've bought two of many rulers and recently gave the second ones to a gal on this site. Made me feel less guilty. I doubt I will use1/3 of all of my rulers and I am trying not to buy anymore, but instead of scissors being my addiction, it's rulers! Go figure!!! I've got a 2"x2" up to a 15"x15" and an 8"x24" and then every triangle out there and every specialty ruler too. I'm nuts, truly nuts.