A mop is a cleaning tool typically constructed of absorbent materials at the end of a long pole. The absorbent materials are soaked in water or some combination of water and cleaning fluid and then dragged over dirty floors to clean up any dust, dirt, or debris.
First and foremost is your child's age and developmental stage. The older a child is, the longer he'll be able to play alone. For example, at 6 months, a child may be content by himself for 5 minutes; at 12 months, for 15 minutes; at 18 months, about 15 to 20 minutes; and at 2 years, for about half an hour.
However, parents of individual babies are in the best position to decide when their baby has the physical ability to ride in an umbrella stroller safely. Some infants may have no difficulty when they are as young as 4 months, while others may not be ready to sit up well until they are 7 or even 8 months old.