I'll throw something out there that won't be embraced, but can give you a bit more life from your laces & shoes....
Just like what a dirty silk fly line does to guides, embedded grit in laces is what cuts through eyelets, lace loops & hooks on wading shoes. When the eyelets get cut, they shred the laces or the shoelaces saw through the lace loops or plastic hardware.
So do yourself a favor and buy two sets of laces. Mid season or at whatever interval you choose, swap your laces and wash the set you took off your shoes so you have a clean pair for the next swap.
It's a little thing, but it helps.