Everyday uses of pulleys include raising a flag on a flagpole because the process begins by attaching the flag to a rope at two corners. The rope runs up to a pulley and back down, and the person holding the other end pulls down on the rope, raising the flag.
Pulleys make work easier by reducing the pulling load necessary to achieve movement. In the case of the flagpole, the pulley changes the work direction, so the person pulling down on the rope is also pulling up on the flag without having to climb up the pole to do so.
Another common place where pulleys appear is in window blinds. A person adjusting blinds to open them and allow light in pulls down on one end of a pair of ropes. The other end of the rope goes up with the action, and the blinds move as well.
People who get water from a well use a pulley to drop and retrieve the bucket. The bucket attaches to one end of a rope, and the person turns a crank attached to a pulley, lowering the bucket into the well. When the bucket has gone underwater and is full, the person turns the crank the other way, and the pulley brings the rope and bucket back up.