Once you've made the decision that you'll buy that little carved wooden idol you love or the batik hanging that would look perfect over your couch, however, slow down and take your time. Remember, bargaining is a back and forth proposition that should spin itself out in its own good time. A shopkeeper that tries to hurry you is just pulling a trick out of his hat that's worked before. If you've done your homework, you already know the waterfront retail price for similar items. And that should give you an idea of the final price you'd be looking for at a shop with much less overhead.
Hammocks are another example of how quality can vary considerable.
When the shopkeeper comes back with yet another alternative price that's higher than the one you've decided on, try the Golden Trick of Silence. Take your time, look around the store a bit as though you're thinking it over. Sometimes this technique alone will be enough to do the trick. If not, start acting up a storm. Then start moseying out the door.