A blue box of detergent with the brand name 'Washo'.
- There are around 40 boxes of detergent in Gold Ribbon Grocers.
- This item can also be found all over the Capital Wasteland, including in your Megaton house when you buy the Wasteland explorer theme or Vault theme.
- There are two boxes in Rivet City on the upper levels.
Fallout: New Vegas
- A number may be found in the hangars at Nellis Air Force Base on the shelves as well as in metal boxes.
- A total of sixteen in Nipton, six in the Nipton general store, eight in the scattered throughout the surrounding house and another 2 in Nipton Hall.
- Occasionally, detergent can be bought from Lady Gibson at the Gibson scrap yard.
- Four boxes can be found in the NCR Embassy building on a metal shelf in the bathroom.
- Old World Blues (add-on) Can sometimes be found on Lobotomite's in the Big MT.