Comments: As far as convenience is concerned, the Hunters Specialties Earth Scent Wafers are the best scents I've ever used, and I've tried quite a few. The earth smell was very natural. The wafers just clip right onto your clothes--very easy. No cotton balls, no film canisters, no liquid. And, the best thing about them is that they rejuvenate after sitting in the case for 12 hours! You can literally use them over and over again. I've been using the same ones for 4 years now. Great Product.