What is the best way to clean an infant (1~12 month)? what i do now is take off her clothes first, then dip into a baby tub filled with warm water.

Bath time can be fun: You can put her in a partially reclining baby tub or other baby bath device (some even come with safety belts!), and using a baby or sensitive skin cleanser and a washcloth, bathe her all over, then rinse all over. Babies do fine with only a few baths each week. Make bath time fun by talking or singing to her entertaining her with bath toys.

Sponging: No need to give tub baths everyday.You can sponge them down with a wash cloth with warm water.Still pat dry.Be sure you are away from any air vent.Tub baths once or twice a week should do unless your child is messy with poop, vomits or pee.