I've seen curved arrows and such in topo maps which I would like to start doing myself. This comes in handy when your map has a lightly colored trail line. This makes it not so great for putting a line path because you still want your viewer to see the trail, but sometimes there are lots of forks on a given trail. So what program do you folks use?
Currently I have PhotoShop Elements 6 which seemed to have no kind of feature for this. I found a straight arrow, but that's boring and slightly more confusing.