I tried to find a way of using both the POS / POW chains, after the $ETH #Merge, that's 100% safe vs. replay attacks.
I would appreciate any (in)validation, from anyone more knowledgeable!
1) Before the merge, send assets from your main wallet "A", to a temporary wallet "B"... 2) Also before the merge, prepare an empty wallet "C". This will be the one you will be using on the POW chain.
3) After the merge, send all assets from wallet "B" to "A" on POS. And all assets from wallet "B" to "C" on POW.