For each room, cut paper into shaped for various furniture. For example, cut out a bed, dresser, and nightstand for bedrooms. With various configurations, it will then become obvious where cable and network ports are best located.

For example, doing so will make obvious where furniture cannot be so that doors can swing and window access exists.

Also install some plastic pipes, for example, between basement and attic. So that future low voltage wires are easily installed for features we do not yet know we need.

Dedicate a location for all communication, network, and security hardware. With enough AC plugs to power those devices. Bringing all wires to a common point (with a large plywood sheet on that wall for mounting) makes upgrades and debugging much simpler.

AC wired in a manner so that a future generator or power wall can power only items that must always have power.

All incoming TV, network, etc wires must enter a structure at one service entrance. So that all share same earth ground electrodes with AC electric.

Ufer grounds (using rebar) should be installed when footing are poured. Essential for all low voltage cabling.