Have you found yourself down to your last match stick as you try to light damp newspaper to get that camp fire going? The wind’s too strong for your lighter. The tinder blows away. You’re desperate for a fire to make a coffee, heat you up, and for smoke to drive away the midges which are eating you alive? I have a secret… and a local pharmacist who eyes me with suspicion when I say I’m off camping so need to buy some Vaseline.