How do you deal with things breaking around the house? ... Just seems like its something every month.
Best approach I've found is to be a bit aggressive on maintenance, to keep ahead of "the curve."
With any potential water/air intrusion, going after it hard and "permanently" makes sense, IMO. It's water, after all, and water can do amazing damage if given a bit of room and time. Doors, windows, faucets, tub, toilet, and all related piping/fittings.
Subflooring is another thing that ages, and it can begin moving, squeaking. Hard to keep up with that in a bits-and-pieces approach, given it's everywhere. Helps to start with good "bones" for the house, and use high-grade materials with quality installation. The "good" stuff, glued-and-screwed, IOW.
Appliances, too, are full of "wear" components. They might be called "durable" items, but as quality's gone down and complexity has risen, things simply don't seem to last like they once died. HVAC, refrigeration, dishwasher, etc.
Of course, everything is a "wear" item, eventually. I've treated my vehicles well, maintenance-wise, over the years. It's been decades since one failed me, and that was a failed part (old radiator) that I should have replaced a year or two earlier. Treating the home like that can get expensive. But with the important stuff, it can help ensure very little fails and makes a mess of things.
Wish there were a better answer. But maintenance and upkeep, aggressively, consistently, helps cure a lot of potential problems. Assuming one can financially keep up with everything in that way.