Clean: Clean exterior of watermelon well and dry it thoroughly.
Halve: Use sharp knife to slice watermelon evenly down the middle, crosswise, so that the stem-end is still intact.
Remove Rind: Take one half of the watermelon and slice off the round end, so that it now has two flat sides. Turn it large cut-side-down on cutting board. Slice the rind off, all around.
Slice: Turn rind-free watermelon half on its side, and slice it into 1-inch large rounds.
Cube: Stack the slice rounds and cut into cubes. Repeat with other half of the watermelon.
Watermelon tends to slice easier when it's cold to begin with. Place watermelon cubes into large airtight fridge containers. Keep chilled, for up to 3 days in refrigerator. If you enjoyed this article, please come back and give it a rating :)