Minimalist box

[Rocketfish]

Royce asked about minimalist tackle.
Now I ask about your (just one) minimalist fly box.
Anyone here uses just one?
In that case, for the brave ones...which is your list of flies inside that box for a day-long trip? (trout fishing)

OK, I'm also a brave one:
Mid-size box, river fishing to (...):
2 Olive Matukas
2 Tan/ white Clouser Minnows
6 ELH #14
2 Griffith Gnats #20
6 Adams #16
3 Pheasant tail BH nymph #16
3 Prince nymph BH #12
2 MadamX #8
4 Partridge & Orange soft hackles #14

R.