my 2 are constantly with me too DD2 is worse as DD1 is at school during the day but like you i cant even do simple things like the dishes or shes there 2 with a chair right next me putting the clean bowls in the water ive just washed them in and getting water everywhere! I havent pee'd alone except at night for as long as i can remember or had more than a 2 min shower due to an audience or her emptying all bottle in the bathroom whilst im trying to shower!

I have no tips on how to get kids to play alone for a while happily but if you find out let me know!