Hey, AkGirl, I get overconditioned really easily too.
I have yet to find anything that really works well as a true leave-in, but I do use the Mill Creek Keratin as almost like a sealer. It has oils high on the list though so if you're a no-oils type it's not the greatest.
2a/2b, fine and thin
cleansing: BS/ACV rinse weekly
PT: Gelatin PT
Conditioner: Desert Essences fragrance-free
Styling: LOTD Aloe