One more thing,
Some counters are to be placed in a cup during game play.
I store these particular pieces in a snack sized ziplock bag.
When setting game up to play you just dump them into the cup.
When finished you pour them back into the baggie.
This leaves a couple of spots open in the tray for the pieces you'll need to find while playing.
I bought a pack of 25 dice bags for like $8 off Amazon. Instead of messing around with cups, I just throw a dice bag in each of my wargames that requires a container for chit pulls. Keep the counters in the bag, draw as needed, then when you're done throw the bag in the box with the counters in it!