Profiles I add are almost always related to a profile I already added and are the result of my discovering the existence of the person because he/she is documented in one or more of the sources for the profile already here.
I start by adding the new person as a parent, spouse, sibling, or child of the existing profile. I paste the relevant source citations from the existing profile on the initial screen.
Once the new profile exists, I search online repositories for all the records I can find and add citations for them to the new profile. I enter the citations at the start of the biography section in chronological order and enclose them in <ref name="something"> ... </ref> tags.
Next, I use the information in the sources to write as extensive a biography as I can, attributing each statement in the biography to the appropriate source with <ref name="something" /> tags.
If any categories or stickers are appropriate then I add them as my last step.
I try to add profiles in an organized way - typically, first a parent of the already existing profile, then the other parent, then all the siblings. When I add a sibling, I will add his/her spouse (then trying to add the spouse's parents and siblings when possible) and children, then each child's spouse and children, as far as I can go, before moving to the next sibling.
