Hi and welcome back.
Of course we remember Eesha in the tub, great videos.
Your new additions looks so sweet..you are in for a ride..jepp, no TV for you..
RV/Caravan places carry a non slip item for cabinets and such that could work wonderfully for you. I have used a similar product used as a base for rugs on hardwood floors as well. It washes up easily, too.