When buying a new home, I'd only look for something with a walk-out basement if a basement is in the plans. Minimizes flooding risk. Provide adequate dry well drainage or stormwater management pond drainage so stormwater is properly managed.
Make sure to go through any room with two exits and put a light switch on both egresses. I have a couple of rooms that I really wish I caught that before the walls got closed up.
I didn't think ahead as far as multiple outlets on separate home runs for outdoor christmas decorations. Luckily a lot of lighting is now LED and fairly inexpensive so low power really mitigated that issue.
If you have an attached garage, try to go for at least 11-12' ceiling. Provides ceiling space for more high wall or overhead storage that you can keep clutter out of living space.
Consider an area for centralizing network and label everything, whether it's a structured media enclosure or wall mounted rack in a utility room somewhere.
Consider 10G to future proof if you plan to build your own NAS for streaming HD video to multiple entertainment areas, or plan to move large files around. The cost has come down quite a bit, even though it may be overkill now. Depends on how much the network will feature into your home environment.
Consider converting to a singular tote brand for storage (I prefer the rubbermaid roughneck). With some office binder clips and baggage style labels you can attach to the lid and visibly categorize material and repurpose things around as needed. If you install overhead storage or wall mount racks and take account of horizontal space and shelf to ceiling height, you can optimize the tote selection to stack totes as necessary to maximize storage for garage storage, closets, etc.
Put in more garage lighting at the beginning instead of having to rig conduit to wire in more lights. Consider a separate lighting circuit for overhead workbench lighting.
The garbage disposal will eventually leak and possibly wreck your sink cabinetry, have a drain pan or drainage setup to mitigate that scenario. Always use steel braided hose connections.
Make sure your garage is long enough for your wife's car plus your workbench, ideally with walking space between the two.