Right now I have one desk and printer but two different laptops. Since I haven't set up the wireless printing yet, I have to deal with changing out the USB cord for the printer depending on what printer I am using. These cord holders have been saving my sanity ever since I put them on the desk for the power cord for the laptops and for the USB cord for the printer. Before, the cords would always fall down behind the desk (which is up against the way, of course) making it a complete pain to be able to retrieve it. Now that I'm using these cord holders, I haven't had this problem at all. All three cords that I use these for are different sizes but the cord holders accomodate all three sizes.
Now that I have tested them out on the computers and printer where I was having the most problems, I'm looking forward to using them elsewhere too. The bedroom is a major charging station for our various other electronics. There are cords galore in there and never seem to be easily to access because they also fall onto the floor. I fully intend to use these cord holders on the wall to help hold the cords up near the charger so that they aren't constantly falling onto the floor.
There are a couple other cords that I need to organize so I'm probably end up buying another pack or two. That's how much I love them and how well they work!