I've used them for nearly a year and they are fantastic! I reckon the 1 kg bag will almost do us for the year, or pretty close to. We do at least one wash a day. I've found they last better if you do a cold wash, and I put them in a laundry bag and hang the bag out on the clothes line with the clothes so they dry out between washes. They are great for red wine stains (which we have quite a lot of
) but not so good for sweat or grease stains. But in the end, sunlight gets out most of the stains anyway, so its all good. I'm totally converted now and won't be washing with anything else. Love em!