As a professional organizer I am an avid user of plastic sheet protectors for my own organizing projects as well as for my clients. Can't imagine how we ever got along without these items! I've tried high-end (& higher priced)however I notice that for most situations and systems the housebrand plastic sheet protectors are absolutely perfect. I ALWAYS have a grand supply for my own use and once a client becomes "sold" on my creative uses of these: they get a big supply also as backup. Never buy sheet protectors in anything but 100s or less; best in the 200 box!