What to do with a toilet roll

Lots of washing this morning but I didn't put it out as it was too cold. I had to go shopping as the milk I had in the fridge although in date was disgusting and I didn't enjoy my morning cup of tea and coffee.  
I popped to see Mel and Ada this afternoon she's back at school tomorrow. She made this princess using a toilet roll and needed a box to make a castle for her which she is doing in the photo. Ada loves doing craft activities really concentrating on what she's doing.