As many others have said, the freedom to do what I want especially at weekends. Having a lie in with DH. City breaks and holidays in term time.
Nice walks, long country pub lunches with no worry about kids getting bored and having to take them home.
Watching what I want on tv. Reading, jigsaws, painting, crafts etc. in peace.
Planning and cooking what we want to eat, not having to worry about making the kids' tea early and separately.
I love my nieces and nephews but I do find it quite boring after a while trying to keep them entertained so knowing I can walk away and get back to my tidy and peaceful 'grown up house' (as my friend recently called it!) is bliss.
Adult-only resorts on holiday.
Not having to listen to high pitched screeching/shouting/yelling.
When I'm ill being able to stay in bed/on the sofa and not speak to anyone else let alone carry on as normal to look after anyone else.
Disposable income. I work hard for my salary but I am very grateful to be able to walk into a shop and not have to think too hard about if I can afford something or feel guilty if I spend something on myself instead of my kids.
But one of the main things for me is not having to worry about how to keep my kids safe online/in this age of social media. It terrifies me that my siblings' kids will get into all sorts of trouble online and I know I'd be in a constant panic if I had my own.