"Are you waiting on a 2XP event to mass evolve?"

#PokemonGO: My bag is approaching its limit slowly as I've accrued around 350-400 birds, rats, bugs, and bats. As someone who tries to get as much efficiency out of this game as possible, I'm unsure if I should burn a few Lucky Eggs and knock out a couple hundred, or just wait for an unforeseeable 2XP event?What are you currently doing with your mass-evolve fodder?edit - Thanks for all the great suggestions everyone. For reference, I'm almost halfway to 37 and typically use a PoGo+. via /r/TheSilphRoad http://ift.tt/2wDtppH