5drive

The Purple-Days makes efficient use of your herb very easy. The bowl is very small, yet very nice hits are available from it. I use a Silver Surfer when I crave some big hits, but I'll go for days at a time being quite satisfied with the PD. It's also a very reliable unit, and designed to be left on 24/7, only using as much power as a couple of 4W night lights. A lot of vapes can be used efficiently, like the Vapor Cannon mentioned by LSD Kool Aid, but it's human nature to fill a big bowl when it's there, like filling up your plate in a buffet line. And if you've got a big bowl of herb, it's hard not to take the big hits. It's like driving a sports car to maximize gas mileage. You can do it, but it ain't no fun.

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