Any idea what to do with these bags?

The thinner ones can be turned into plarn which I have done before, but the UK has got rid of all the thinner ones and replaced them with these which are meant to be reused. But I have hundreds of them just sitting in the cupboard and I obviously don't want to just throw them all away

The thinner ones can be turned into plarn which I have done before, but the UK has got rid of all the thinner ones and replaced them with these which are meant to be reused. But I have hundreds of them just sitting in the cupboard and I obviously don't want to just throw them all away