there's also freecycle for getting rid of stuff (or getting more stuff - but at least it's not going in landfill!)
Store carrier bags to be re-used in a big plastic bottle with a whole cut in the side.
I use large yoghurt pots with lids on as freezer containers when I make extra sauce for chilli, etc (vegetarian of course!!)
Cut large plastic drinkd bottles in half and put them upside down over seedlings as a cloche (punch a couple of small holes in the top)
Cut a large drinks bottle in half and submerge it in your toilet cistern (cut a bit more off the top if it is not flushing 'thoroughly'!
(btw - I don't actually have many fizzy drinks bottles - and those I do have got to the re-cycling centre - but these are just ideas I've seen!

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