Advancing is easy at first. Initially, you need points totaling about 1,000 times the level you want to reach. Naturally, it gets harder the higher you go. For example, you need 100,000 points to go from Level 22 to 23. Once you pass Level 20, you can slow down by quite a bit, and to keep up the pace, you can find yourself spending real money. For example, the game always allots you what’s known as the infinite incubator, but it lets you hatch only one Pokémon at a time. I was given two incubators that accommodate up to three Egg hatchings each, and those incubators need to be replaced. You may also find yourself using up Lucky Eggs faster than you can replenish them in normal play. To keep moving, you might want to purchase Lucky Eggs and incubators. Try to live within a budget by deciding how much you can afford per week or month. Of course, Pokémon Go creator Niantic is interested in making money, so the higher you go, the more difficult it is to move along at the same pace. The wild Pokémon you encounter will be more powerful types and therefore more difficult to catch, and even the less powerful Pokémon become more feisty. One way to save money: Learn how to throw curveballs, which makes capturing Pokémon easier.