Cereal plastic bag - What uses?

Got a plastic bag out of a 1.26kg cereal box. Was about to throw it in the bin but then noticed how thick and tough the material is. Surely there can be some uses with it!
The seals are not very durable and can be somewhat easily pulled apart, but the material felt strong at 30x40cm. Nothing comes to mind but wondered if people here have used it or have ideas for it? A bit of a waste to just dump it. Or should I just get on with life?
Otherwise, it's easy enough to just use it as another waterproof bag... I think they are made of PE.
The seals are not very durable and can be somewhat easily pulled apart, but the material felt strong at 30x40cm. Nothing comes to mind but wondered if people here have used it or have ideas for it? A bit of a waste to just dump it. Or should I just get on with life?
Otherwise, it's easy enough to just use it as another waterproof bag... I think they are made of PE.