Jack Reacher's underwear

I've been reading Lee Child's books about Jack Reacher. His latest, Bad Luck and Trouble, is pretty good if you like that sort of thing, which I do. Lots of action, not much Inquiry into the Meaning of Life. He gets on with it.

You should know that Jack Reacher is a nomadic character, who goes wherever he listeth, carrying only a collapsible toothbrush. Wherever he goes, he finds intrigue and devilry and, after heroic effort, puts things right. He's a lone wolf, needless to say.

He has no spare clothing, wearing what he stand up in until he buys another outfit, and then discarding outfit A for outfit B. What bothers me is that toothbrush, or actually, what he doesn't carry besides it.

I mean, what does the man do for underwear? He sleeps with his clothes under the mattress, by which I gather that he is in the nude. But when he gets up and takes a shower, does he put on yesterday's dirty undies? Ugh! Or does he go commando? Also ugh, except not perhaps so much.

Also, in a related matter, what does he put on the toothbrush?

In my imagination, I have solved this problem. I have endowed Jack Reacher with a small attache case, containing a change of undies, toothpaste, deodorant, and a shaver.

It's so much neater that way.