| Some First Class stamps clotrimazole and betamethasone dipropionate ir Something that has been around for some time is a Parasene Weed-Wand (parasene.com), which is a mini flame-thrower on a stalk the length of walking-stick. Using it is a bit tedious, but at least you can do it standing up. It does rather depends on the kind of weeds you are having to tackle. The Weed-Wand will blitz annual weeds easily, but is not quite so brilliant for any established tap-rooted perennials such as dandelions, which in my experience tend to get singed but then grow back again. Salt (technically a "chemical", I suppose) works too, but how "friendly" that is in a garden depends rather on how and where everything drains from your block paving.
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