On 25/01/2020 09:52, T i m wrote:

As does the money they earn for the school for doing so.

But you knew that didn't you?

It probably cost more (salary + materials) for a teacher to supervise,
package up 5kg of crisp wrappers, print out a postage label and contact
the carrier than the school gets back from Walkers.

approx 2200 empty packets = 5kg minimum weight package to send to
Walkers for rewards = £10


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