I love helping my kids realize they can both ask for help and do things on their own. This was just one more step in helping them become more independent. In our house the cups stay up high, out of reach of kids, and when they want a drink they need help getting a cup. To solve this and help them feel more independent I hot glued two magnets to two cups. (one for each kids) Let dry and then explained to my kids they have their own cups now and instead of asking they can use one of the cups and get a drink. When done they are to dump the cup, and place it back on the refrigerator. (They do not even come close to reaching the sink yet, so it will still be mommy's job to clean)
Note~ only use for kids who you know wont mess with the magnets(of course it could be a choking hazard for little kids/toddlers), and kids who all ready know how to pour a drink.