Quoting Addi's Momma:" How old is she? DD is 3.5 and she gets the choice between 2 outfits and a pair of shoes is already picked ... [snip!] ... up until I am ready for her to get dressed and I dress her while she is still half asleep. It makes mornings go much smoother."
2 outfits is a good idea. I used to do that last semester but I was having the same problems, she wasn't ready to leave. So I figured I would give her chill time first but she still has trouble transitioning into leaving. She's 3.5 also.