At least once daily the Deity's clothes must be changed, in the morning. If the Deities are small, as they appear to be from the photograph, then they can be laid down in a bed at night. And they can be given nightgowns to wear before taking rest. That is nice. If there is time and facility then these things can be implemented. So far as bathing is concerned, it requires two hands and one tongue. In your left hand be ringing a bell and simultaneously with your right hand pour water. Chant Hare Krishna, Cintamani, Govinda Jaya Jaya, etc., like that.
Letter to Daughter Laksmimoni, 1 May, 1971