an aside...

"A Dopp kit is a small toilet bag, made of leather, vinyl, or cloth, that is used for storing men's grooming tools for travel. Common items kept in a Dopp kit are deodorant, a razor, shaving cream, comb, shampoo, nail clippers, scissors, toothbrush, toothpaste, and cologne. The name derives from early 20th century leather craftsman Charles Doppelt, a German immigrant to the United States, who invented his toiletry case in 1919^[1].

The kits became widely known during the Second World War when they were issued to GIs. Doppelt's company was purchased by Samsonite in the early 1970s.

Dopp kits were once a common gift given to adolescent males as they ascended from boyhood to adulthood. [1]

Although the term was originally a trademark and may still be, it appears to have at least mostly become generic.

In British English/England the item is known as a "sponge bag".