Hi Alan, I am just about to do the same.
I try to start the year all sorted out and ready to go, but by the end of the season I have put wet flys in my dry box and so on and I feel I always carry far too many with me.
I despise large fly boxes and carry 4 small ones all the time in various pockets of my waistcoat, but am sure I can get away with only two.
My aim this next outing is to have one dry only box various sizes and patterns with maxium three of each pattern.
And one box of wet / nymphs / bugs a few of each.
That's my aim, we'll see if it works.

Have a nice afternoon.
PS yes being a miserly old sod I do clean off old material and reuse the hooks, but I give them a thorough check before retying.
Cheers S
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"A glint of sun has warmed the air,The flies will soon hatch out, To lure and tempt from their deep lair, The bonnie speckled trout."
SKB tackle supporter. I love Furled Leaders.