For the UK - if you are a National Trust member you can get 15% discount across the board from Cotswold Outdoor
This applies even on already discounted/sale items - I just used it for a great deal on a Deuter pack
Disclaimer : I have no connection to Cotswold except as a happy customer !
Regards
Rick
One better, as a Snowdonia Society Member you get 20% at Cotswold !
https://www.snowdonia-society.org.uk/join/
73 Neil
Two better. As a regular customer, just build a relationship with the store manager and arrange a discount on purchases. No need to spend money on subscriptions then.