I'm working on it also, with my lvl 20 F2P, knowing that i'll not have it complete until i buy it:
Josiel @ Gurubashi - US
Some tips may be ovious, but here we go:
- Follow the roads, it is much less likely to get killed in the roads.
- Halloween broom is very useful, since it is instant-cast.
- Use your ghost form well, remember you can use it to reach a town, when you get there, just click on the button "return to graveyard" and it will return you to the town's GY, EXCEPT IF YOU ARE IN HYJAL, or you'll be teleported to Astranaar (Ashenvale), it's a pain in the ass.
- There are some areas only reachable with flying mounts, like Storm Peaks, The Makers' Perch (Sholazar Basin) and Vermillion Redoubt (Twilight Highlands), so try and find a friend with Recruit-a-friend mount or the alchemy drake.
- I never tested it for sure, but it seems Tol Barad is reachable (i almost got there) if you get some swim speed increases,
Swim Speed Potion is the most helpful, but you'll have to have many (i had only 3 and got about 3/5 the way to Tol Barad).