"More than one use"
These are really useful in the supermarket and it's amazing how many fewer plastic bags I'm throwing out. They have another use too - if you like the sort of bath bombs that have seaweed, flower petals etc in them, you'll be familiar with the blocked plughole afterwards. To avoid this, simply pop the bath bomb in one of these bags and drop it in the bath. Hey presto, all the nice essential oils dissolve into the water but the bits stay in the bag. Let it dry and then turn it inside out over the bin to empty the bits.