It's inevitable: a house will always need some kind of maintenance whatever you do. Sure, it will stay it's ground longer if someone is almost always around, but that doesn't mean you wouldn't be needing repairs every now and then. That's why we always keep some carpentry/electrical/what-nots over under our sink (inside a tackle box). If needing some materials, you can always check the reid website, or any site that's near your area.
Sometimes hubby makes fun of me, teasing me about stacking up on things that we won't be needing yet. lol. I just like to look ahead, you know. Nothing wrong with that. Just don't go overboard (like keeping loads of cement blocks that you don't need at the moment!lol). :P