Deadbolt the doors, bolt everything down, put alarms on everything. SIL is visiting!
I am only partially joking. She will be her just after New Years. She is staying for 4 days. She started the "I miss you" campaign with my DW about 2mos ago. Conceptually I am not against it. In reality, it will undoubtedly be an emotional shit show for my bride and a big part of that will be the anxiety that anything and everything will have to be secured or it will disappear.