my kids really live on pure chometz. i find feeding them on pesach to be a huge challenge, they are always hungry and the things they can eat are very expensive. That is one reason why i dont “turn over” my kitchen any earlier than needed. I also hate using frozen food for a yom tov or shabbos meal (my own schtick) and have always served fresh so even if i had a pesach kitchen, and even if i was physically capable of cooking early, i dont think i could bring myself to cook and freeze yom tov foods.
The only things i have ever been able to do to ease the pressure “early” are to vacuum out all rooms besides the kitchen and living room/dining room so that i know that is “all” i have left to do. and i never gave my toddlers cheerios, i know im limited on time and energy so we were proactive in that way. we gave them sugar cubes as snacks. totally pesachdik and if it gets stuck in the couch, well, it wont be there for long.