Gathering your own nightcrawlers is a good way to save some money and its easy once you get the hang of it. All you need is a headlamp, a container for your worms. Nightcrawlers can be found after dark on almost any night, but nights after a rain are the best. Once you start looking get low to the ground and scan 4-6 feet ahead of you. be sure to walk softly, worms are very sensitive to vibrations. once you spot one quickly pin it against the ground and pull softly and steadily to pull the worm all the way out of the ground without breaking it. On a good night it is not uncommon to gather 2-3 dozen worms. worm population varies depending on rainfall and the soil type of your area.