the manager at my local stroe liked me so ive got one.

for the amount of stuff i ever buy its handy.
the discount differs between ths stuff. there aint a set discount with a trade card.
but when u can get plugs, leads and filters for a pretty decent price its handy just to pop down halfords and grab them.
even easier for me as my mate works there and has my number, so i just stick in my order and he drops it round.

if u r doing it day in day out though it probably dont compare to other places, but they will price match!
the manager who gave me my card knew what stuff the local shops sold cheaper than halfords and he just gave it all to me for that price any way.

even red dot brake pads, he knew he wernt the cheapest but always sorted me out! top guy, shame he has left now