A bubble bath every Sunday with plenty of soaps and bath bombs and salts etc to feel lavish. Sometimes sneak a glass of prosecco in there too.
I have an hour to myself each morning to shower, wash my face, brush my teeth, brush my hair, do my make up and get dressed and have a coffee. I purposely put this in the kids routine. I needed time to myself and a pause from being a mum constantly. Just an hour to make myself look human and half decent. That hour before I get the kids up is absolute BLISS.
I make my bed each morning (as in change the sheets too) and clean the kitchen each night. Waking up to a clean house and going to bed in brand new clean bedding is so relaxing and much less chaotic.
Teaching the kids how to be independent and cope without being pandered too constantly. My eldest can make coffee and some basic meals for himself and his brother. Him and the toddler can put things away and help with basic housework. My toddler helps with the laundry. Basically have two slaves 
I had the kids in a routine very early on. Made sure they slept through ect so I wasn't knackered and exhausted all of the time. Made sure they were fed and napped at certain times so they hardly ever cried or whined that they were hungry or tired. I was always complimented on how content they both were. Always smiling and placid and happy to chill out and plod along with life. And I always had time to do normal things without being stressed out with a newborn baby.
Lighting candles (even if it's just some tealights) each evening after the cooking, cleaning, kids bath time is finished and I have a couple of hours to catch up on my programmes.
Making sure the majority of my furniture has tonnes of storage. Now everything in my house has a place. And I help that by always putting things back where they are meant to go.
Because of all these things I have a very clean, very tidy, very calm household and I'm not the mum friend who is constantly moaning about the kids and the house and her life. Me, DH and the kids are all just chilled out, happy and relaxed. The neighbours must think we are on drugs.