Swim Speed Potions (used especially at lvl 37 for Faldir's Cove in Arathi Highlands and lvl 57 in WPL). Try to get multiple stacks of these. I also recommend keeping a stack of these always in your bags. You will frequently pass rivers and lakes and can use these potions to pass them faster through out the guide. Please note that these potions do not stack with Druid's Aquatic Form and Glyph of Aquatic Form.
The Horde 12-20 (Barrens + Stonetalon Mountains) guide has been rewritten and revamped. In addition, there has been numerous tweaks to the speedrun route to make things faster and easier to follow. Also, in case you haven't noticed I am now adding about 40% more info per step and redoing all the images. Unlike with my previous vanilla guides, I am now giving a brief explanation of where to go and what to do with each step along with any other helpful tips.
I now have a Patreon Page where you guys can support me while I work on Vanilla WoW leveling guides every day. I appreciate all of you who support me on there, it means a lot to me right now. Doing this full time is taxing on my financial situation. My goal is to make the best Vanilla WoW leveling guides on the web and the donations keep me going at it healthfully. There is also cool rewards you get in return for donating. Thanks!