R_J_K75
Legend
I give players XP after every battle, though, instead of waiting until the end of the session, so they could potentially level up more than once in the session, but very rarely would be able to level up twice all at once.
I can remember one instance where we ended a session and I had gained enough xp to gain 2 level but my DM only allowed me to gain 1 level and put me 1 xp short of the next level. Typically in our games then xp was only given at the end of a session at best, at worst after we completed an adventure. I had to make it through a whole other session to get 1 xp.