Bonded Cleaning Person For Retired, Active Woman.

I'm looking for someone about every 3 weeks. My home is very clean and organized, but I need someone to keep it that way. One floor, with very infrequent vacuuming and dusting of a 1 bedroom loft. Dusting blinds, molding, knick-knacks, mirrors, cleaning the bathrooms and the floors, changing mainly 1 bed. Very straightforward. Attention to detail and being very careful with objects is critical, and it is not a cluttered space. Nonsmoking home, dog that visits occasionally. Thanks!