We get drop ins all the time, and like it. Most of our friends seem to time their drop in for breakfast on Saturdays or dinner on Sundays. We just set an extra place and say the more the merrier. I love to cook so it is nice to have a few extras. I never drop in on others though, I prefer to hang out in my castle.

I do live in the city, though, so everyone lives close by and it makes sense to stop in as you walk by someones house.