I was at this house party once and these fucking noob wannabe smokers were there and they were like "ah blud lemme lick ur baggie" they thought licking the baggie and getting all the trichomes out and on there tongue was getting them high, and they were all like "blud i'm bare chunged"... i left after that, but i use the same way dave, bud i use a travelcard, they work and they're disposable.