I have noticed some people tend to load up after a portal and just a little further crash and your miles from the town you started which is a pain to get back to there. I just think if at every portal they put a marker to jump there it would save people a lot of grief because they just spent 1hr getting to that point and they went past 2 portals to get there. I know thats going to make your map look like someone shot at it with a shotgun but less trouble having to do things over you just completed.
EXPLORING TAKES A LOT OF TIME 