Moisturizing:
This cannot be emphasized enough -- DO NOT OVER-MOISTURIZE.
As mentioned in the "cleaning" text, ointments and petroleum-based products retard the healing process and do not let the skin "breathe". Similarly, slathering your body with lotions on your tattoo continually will also retard healing, lead to heavier scabbing and potential loss of color from your new Tattoo.
Moisturizing should be "light" -- a thin coat in the morning, and in the evening. Primarily this will help to prevent itching and help slough off the thin "onion" like skin that forms over a new tattoo much like a sunburn.
EXCEPTION TO THE RULE --
Difficult to Heal Areas of the Body: Isn't there always one? On occasion, there may be parts of the body where despite your best efforts, you end up with some heavy "scabbing" -- for example, the area/crevice where your knee or arm bends. There, the constant, repeated movement of the joint simply makes it very hard not to end up with some scabbing during the healing process. Sometimes this can be painful and perhaps even impede proper healing of your new tattoo. On those rare occasions when this does happen, we recommend showering to hydrate the area that has scabbed and to apply heavier and more frequent coating of lotion to help it dislodge the scab. This must be done carefully -- picking at the scab and pulling it away before its properly loosened will just result in more scabbing and loss of pigment. Sometimes removing heavy scabbing -- on a joint-area particularly -- results in better healing for the rest of the tattoo. You may also need to have a touch-up those areas where the color is lighter after healing -- but this is normal for more difficult to heal areas of the body.