Mixing vortex (LN whirlpool by benthecarman) + channel splicing + greenlight nodes for each separate uxto as to not dox xpub
xpub
=ultimate future privacy wallet
wallet
Discussion
Plus if you use combining LN payments from multiple wallets as shown by @fiatjaf with Simple Bitcoin Wallet, you could pay lightning payments larger than your biggest UTXO, meaning you need to spend less on whirlpool fees, and making your mixed change more useful
Here is the video of that split payments in action https://www.youtube.com/watch?v=so6W027j3YQ