For many, Bitcoin is a safe haven asset in case of systemic economic catastrophe. What steps would be prudent to take in advance to minimize networks fees in event of a Bitcoin "bank run"?

For instance I generally use a new address for each exchange purchase. Would it make sense to consolidate funds into a single address or denominate some into smaller address to prevent change transactions? Synthetic/wrapped on other networks? Pre-funding a Lighting channel? Curious if others have thought of this, or already devised some kind of plan.