Keeping a clean house is important to the overall happiness of the household. If things aren't clean and organized, then you and your family will stress on a daily basis about not only finding things, but hoping guests don't show up unannounced. That is why a large family must have a schedule or list of jobs and chores for everyone. If no one picks up after themselves, then all the stress (even though your house is clean) will most likely fall on you. Eventually you will get burnt out and the house will go back to being a pig stein.
When cleaning a larger house, cost becomes a concern as well. Cleaning supplies, especially branded ones, can be very expensive when your cleaning duties are excessive. Also you end up buying a different product for every nook and cranny of your home, when actually a couple of all-purpose cleaners will suffice. What I suggest to those cleaning on a budget is to make your own homemade cleaning products. With a little elbow grease and few products you most likely already have, you can create a cheap kitchen cleaner, a homemade shower cleaner, a diy oven cleaner and that's just the start. You can find cleaning recipes for just about anyting online.
Lastly, the key to keeping a clean house is to have help. When everyone takes care of there things whether that's trash, dirty clothes, dirty dishes, or just making their bed, cleaning a house becomes a lot easier. You don't need to spend all your time and money trying to keep everything in check. Instead opt for some homemade cleaning solutions and some hard work by everyone.