Throughout the years, I have, sometimes, been disappointed with cheap glue sticks, but, I am always up for trying new sources :) So, here we go ...
Pritt Stick: 6 x 22g for £7-8
Unbranded Stick (from 'Poundshop'): 6 x 22g for £1
Card stuck on paper, same application technique, as before, left for 24 hours ...
Equivalent in adhesion ... now to see what the usage rate is like, but, they feel much the same, in use (perhaps even fewer 'glue boogers', for the 'Unbranded').