Once upon a time in American history, a jig was included in military survival kits. There was a good reason for that. Sized properly, jigs will catch everything that swims. A jig can be trimmed with all sorts of fish-attractive trailers. A plain jig, which is no more than a weight molded onto a hook, becomes deadly when inserted into a plastic worm, grub or tube. Depending on how and where it's retrieved, a dressed jig with a skirt of marabou, silicone tentacle or bucktail represents a minnow, insect or crawfish to predators. Ultralight jigs rigged drop-shot or multi-dropper fashion are favorites for crappie fishing and will also take bass. Tip a jig with live bait and you have the darling of walleye anglers.