Buzz Aldrin was the second man to walk on the moon. When he stepped out of the Eagle lander, Aldrin said, "Beautiful view. Magnificent desolation." He then consulted the cuff of his left glove, which had a sewn-on checklist of things he had to handle during the EVA (extravehicular activity), and got to work. Here's the checklist:

NASA / Ken Glover and Amanda Young.

As you can see on the list, many of Aldrin's tasks had to do with studying the lunar regolith—its texture and the ability of suited astronauts to walk and ride on it were big questions for NASA. He also had to inspect the Eagle and take a bunch of photos, in addition to collecting various samples before returning to the Eagle.

Today, the glove and the rest of the EV suit are in the Smithsonian's collection.

If you like moon stuff, check out NASA's very 1996 website on Apollo 11, which features 68 "LM Checklists" as well as a detailed rundown of Buzz's suit, including the original for the photo above.

(And in case you were wondering, Neil Armstrong had a checklist too!)