Apparently my house keeping is lacking

I've never been the best housekeeper out there, but I do try to especially keep our living room picked up and keep the room clean. I'm finding that by working again, things aren't getting done as frequently as I may like, but for the most part we are hanging in there with the housework. The last month has had some challenges, because in addition to the working, the kids have had lots and lots of activities, and I've had a sinus infection which really wears me out. I always wanted to have a house where anyone could drop in unannounced, but in this day and age of cell phones and schedules, no one really just drops in anymore. That was my justification in kind of letting things go. Last week though, I noticed that the dust in the living had started to develop layers and I just couldn't take it anymore. I spent my two days off last week cleaning and cleaning, and I was very pleased with how much I managed to get done. Apparently I've really not been doing well with trying to keep up because when JC walked in after school, she looked at the living room, noticed how clean it was, and asked, "Are we having company?" Yikes!