I just remade my fishing kit. fits in a tic-tac box. includes:

3 bobins - 1 with 20 pound spiderwire; 1 with nylon upholstery thread (brown) ~ equivalent with 10 pound spiderwire; 1 with dacron thread ~equivalent with 4 pound line. I went with these because this way I carry over 100 yards of line and it doesn't kink like the mono would when wound on small bobbins.

4 dry flies

7 #10 hooks

7 #6 hooks

7 steel split shot

1 Large hook for gaff

1 small wire brad for attaching the Gaff to stick

1 small daredevil lure

Around the outside I have a square yard of foil to make expedient lures and two large twist ties.

I still have a bit of room in there so I am wondering what else I could add.