How do you keep on top of housework?

My little boy is 10 months old and I’m due to go back to work in 4 weeks. I have completely and utterly failed to keep on top of anything other than washing, food shops, the dishwasher and cooking. Our house is super messy 90% of the time and it’s getting me down now as I’ve no idea how we will keep on top of it when I go back to work. Please share your tips on keeping a clean and tidy home amongst the chaos of parenting!!