Sanding

Over the weekend we've had teenaged guests. Rémy's friend Gabriel and Emma's boyfriend Evan. We had a bit of a lazy informal time, with an apéro Saturday night then grillades, ratatouille and gratin dauphinois for Sunday lunch.
Sunday afternoon we went over to the other house to do a bit of work. Sanding the ex garage, now room. Mme MB also removed the wallpaper in her Papa's old bedroom. 
I managed to do all 4 walls, but have the ceiling to sand, which I'm not looking forward to. After that I have the tiny utility room to sand as well - which is like a corridor between the kitchen and the garage. The washing machine will also need to be removed.
Then we'll be able to start painting the walls white. In the photo they look clean, but they aren't.