All the time, I get tired of the same old routine day in and day out.
First off, with all those young, active toddler and babies around, I would recommend you get rid of the puppy and adopt a housebroken animal from the shelter. I would go nuts cleaning up puppy messes and toddler messes.
At this stage I would recommend a systematic approach. Every morning start a load of laundry. I would recommend everyone in the family wears the same colors socks and underwear, so there's no searching for those little pieces that always get lost. I have a SIL who would buy adorable outfits from Gymboree with matching socks and then be insulted that my son was not wearing the complete outfit when she saw him. She clearly does not have children.
Every meal should be healthy, balanced and the same for all. Don't cook up different things for different tastes. Just add variety. They'll get what they need.
Kids are great at helping to sort laundry, and unload the dishwasher especially if you have plastic plates and cups for them and store them down low for them to put away, and setting the table, and cleaning up spills. Keep them quarantined to certain rooms that have their favorite books and toys. Keep the bathrooms off limits, only one at a time, so they don't gang up in there and pull it all to shreds.
Get out of the house everyday for a trip to the park, a stroll down the street, walk the malls if it's cold to break up the day. I used to take my kids to the local airport to watch the airplanes take off. Before 9/11. We would park for $1 and take the free shuttle to the airport and ride the escalators. They had lots of running space.
Then do just one household task a day. Come up with a list of chores that need to be done weekly...like clean the bathrooms, then pick a day for that. I like to vacuum on Friday's and Monday's.
Also, come up with a couple of favorite meals and make enough for lunch or another meal. Basically, cook once, eat twice. Like lasagna and spaghetti can be made in large batches. They are easy to freeze and reheat.
Hang in there, these years go by so fast.