Swap jobs. Surprise your kids by sometimes doing what they expect your partner to do, so they might find one day that Daddy is doing the school run and Mummy is asking them for help to build shelves. Taking on s task that your partner usually does can make for more equitable co-parenting.
Have one to one time. However many kids you have, try to give each one a little time alone with you. No two family relationships are the same, so children revel in getting Mummy, Daddy or another much-loved relative all to themselves. When the family is tired and fraught, it can be helpful to split up into more manageable teams.
Have one parenting approach. If Mum is very strict and Dad very lenient, or vice versa, kids get confused and behaviour tends to suffer. Bash out your differences in private so as to be able to give your your kids clear, coherent guidance.
Free your partner from parenting. Let them go on a short break with friends, take a course or just have a long lie-in ocasionally. Doing things all together as a family is great, but parents need their own time for work and play.