Chesed of Chesed
Sorry about below, I said it starts at Geburah, but it actually starts to the right of it at Chesed. In either case, I'm using this web site: http://www.aish.com/spirituality/growth/Daily_Omer_Meditation.asp . It's from the same author as The Counting of the Omer. The mediatations/thoughts can be usful physically, but in a meditative way of thinking, at least for me, for week one (Chesed/Mercy/Love) I will be thinking in terms of unity. So for day one, Chesed of Chesed, or Mercy/Love of Mercy/Love.
Also note that the Jewish day begins at sundown, so Tuesday at sundown is the second day (but first day of the counting), until Wednesday at sundown.
Also note that the Jewish day begins at sundown, so Tuesday at sundown is the second day (but first day of the counting), until Wednesday at sundown.