Slugs eating hosta’s

Should I give up on growing hostas?  The thing is, I like them, but so do slugs and snails! I don’t like using slug pellets because of the consequences of the nasty chemicals, so my hosta’s look good for a while and then end up chewed and tattered.  I have tried lots of things – crushed egg shells around the base, coffee grounds, copper coins, Vaseline around pots, and picking the blighters off by hand. We have quite a few blackbirds and thrushes who visit, but no hedgehogs to act as natural predators. Any suggestions welcome! Organic gardening offers lots of challenges, but I’m not prepared to introduce lots of chemicals into the garden, or to spend hours watering stuff.