As you start to reach Level 9 or higher in Pokémon Go, you'll start to see a Lucky Egg or two in your Items list. These can also be bought from the Shop, but no matter how you get one you need to use them to their fullest possible extent. A Lucky Egg will double all of the XP you get for 30 minutes, so you want to spend that time wisely. There are a couple of strategies floating around for getting the most out of Lucky Egg, but this one seems to work best so far.
Before you use a Lucky Egg, make sure you have the following:
- Common Pokémon to evolve
- Lure Module or Incense
- Lots of Poké Balls
Head to your favorite local place where there's a Pokéstop and a Gym nearby one another, or a place with multiple Pokéstops in close proximity. When you get there, drop a Lure Module on a Pokéstop and activate your Lucky Egg. The countdown from 30:00 will begin immediately, so it's time to get to work. Start by evolving all of your common Pokémon. Every Pidgey into a Pidgeotto, every Weedle into a Kakuna, and so on.
Every little evolution grants you the same XP, and now you're getting double with the Lucky Egg. In between evolutions, capture everything brought to you by the Lure Module. All of your captures will also earn you double XP, and when combined with the evolutions it adds up quickly.
You want to keep this up until the Lucky Egg expires. That half hour can go by quickly if you're well prepared, and if you follow this strategy you will gain significant chunks of XP in very little time.
For earlier levels this can mean making a several level jump, and when you get above level 20 it can be the difference between waiting for your next level and being ready to take on the nearby Gym. If you want to better plan your Lucky Egg evolution, your best bet is to check out PidgeyCalc. This site will tell you the exact number of evolutions you can do during a Lucky Egg based on what materials you currently have. Master the Lucky Egg, and you'll be battling with the best in no time!