Where's the best place to get those plastic envelopes for posting clothes?

[vacaloca]

I'm about to put loads of children's clothes for sale either here or on ebay. i haven't done it before but I'm guessing the best thing to use is those strong plastic envelopes. I don't buy that much on ebay so I've only gathered a few over the last few months and I'm going to need a lot more (hopeful emoticon). Any recommendations?

I got mine from Ebay! I guess they are all pretty much the same apart from the size and colour.

I always use these people
They are always fabulous.
Happy selling

Excellent - just ordered those. Thanks!

I've used zip-lock freezer bags inside ordinary envelopes - might be easier?

I buy them on Ebay from a seller called cmsluk. Their pink and purple ones are fab!

Some cheap postal bags and some coloured postal bags