My favorite weeding "tool" is anyone that I can get that will do it for me.
I use the buckets that Polymerous uses, and a variation on the same. If you go to a feed store, they are called muck buckets, for mucking out a barn. I bought a bunch of them at Home Depot several years ago, for about $5 each! They also come in handy for putting over plants to save them from the weather. I had to do that every year with my veggies, when living in Utah, because it always snowed on them.
I need tool information too! I don't seem to have any tools for weeding, other than a dandelion fork, a small hand shovel, and a big shovel. I don't even know what is available these days!