I am wondering if AIBU but a neighbour knocked at my door this afternoon and asked herself and her daughter in. I hate this, my house is often messy and it was no different this afternoon as I was trying to sort some Christmas stuff. I couldn't say no because it was cold and they were waiting for someone with keys to arrive at their house plus I'm not that rude to refuse them.
Just for the record if this was a close friend or family they would be totally welcome.