Every day from now on, try to fill up your bounty inventory with ten 5,000 xp bountys. That's 50,000 xp right away. Next, you need to start doing a public event every day from now on, and horde the reward packages in your post master, because each package rewards 5,000 xp when opened. The total xp gains when you turn in all bountys and public event reward packages is a whopping 150,000 xp. However, if you got ahold of redbull codes and have focused light, the total xp gains will go from 150,000 xp to 225,000 xp, which is most likely to get you straight to, lvl 40, and rank up whatever new subclass you want to rank up. Good luck guardians :) Edit: Make sure you complete the new subclass quest before you consume your bountys/rewards, and complete the nightfall first (if possible at lvl 34) Edit: Also, pledge allegiance to a faction to receive reward packages to get guaranteed TTK loot Edit: I noticed a lot of you aho have commented say that I/we shouldn't rush to getting to lvl forty because we wont have anything to do afterwards. Well, in TTK getting to lvl 40 is only the first step. First of all, you still sill need a higher amount of light to take on higher level enemies, and second, bungie has stated that a significant amount of content wont be unlocked until you hit level 40. For example, you have to be lvl 40 to upgrade year one exotics. Edit: I get it, some people will get bored if they do this. You don't need to mention this, there are at least 150 replys like that Edit: Also, do the nighfall to get another 25% xp bonus, with the extra bonus it will give you 281,250 xp. The daily crucible and mission will also get you xp Edit: This guide is mostly for people who cant log on for hours on end doing missions and strikes, etc... Its so you can log on, do a bounty, play some patrol, maybe do some crucible, and get off when you need to if you're pinched for time and can't hit lvl 40 in September easily without doing this Edit: Googled it, public events DO give you 5,000 xp, not 2,500 xp Just think of the level advantages in Trials of Osiris on the first weekend of TTK