It seems like all my cardigans and most of my sweaters have moderate to severe pilling. I've tried cutting them off with scissors, but that's super time-intensive, and dangerous, since I've been known to accidentally cut things, including myself. (Only once, and just a little.)
Last week a friend mentioned in passing something about having a sweater stone in her laundry kit. I had heard about them before, but totally forgotten. Fortunately our free year of Amazon Prime has not yet expired, so a couple days later, I had a sweater stone of my very own. I've spent the last couple nights making a terrible mess of my living room (you might want to take some quality Outside Time if you try one) but I'm quite satisfied with the results. It's not perfect, but my cardigans look far more presentable than they used to. And I suppose if I didn't wait three years before I use it again, it might look quite good.
So yes. Two thumbs up for the sweater stone. If you want one, I think I get a kickback if you do it through my link. Not that I've ever made anything off Amazon Affiliates, or care either way. I just want to share about a cool new product I've found.