I have to reenter many items each day. How can I get all the usual items to show up on my list of foods?

if you're eating the same meal as yesterday for the same meal you can click quick tools under the meal slot and click "copy yesterday" or "copy from date" if it was within the last week.. if it's outside of a week you go to the day it was logged click quick tools and click "copy TO today"

Or go to breakfast yesterday click quick tools and click remember meal
now when you go to breakfast today and click add food you can click the "my meals" tab to add from your remembered meals list.