Also a lot depends on what your fishing for, ie chub perch roach bream tench.
If its perch then feeding with maggotts and run a float fished worm down the outside , thats where the perch will be. Or a free lined lob worm on the bottom in a perchy area.
Roach you can fish on the bottom with a float rig , feed maggots or caster with little pieces of worm, small worm ,cut them around a quater of an inch for feed and try half or a whole worm hooked just below the head.
Chub normally take a whole lob ,laid in towards the bank near a snag or undercut.
You can feeder fish with a closed feeder just make the wholes a bit bigger and fill with little bits of worm and maggot. The maggots will push the worm out. Then a worm on the hook.
As fred says you can combine two feeds such as worm and maggot or corn, this will hold your worm on a barbless hook. if your just useing worm, then just cut a piece of float rubber and put it over the hook. this will stop your worm coming off.
Worm and caster or worm and corn a classic for tench. and bream , combined with some groundbait and chopped worms. and so it goe's. hope we have helped. tight lines