My mom's a 3a/3b and has had a pixie since...I don't know, the dawn of time? 40 years anyway. It looks fantastic every day, and she does nothing but condition the cr%p out of it.
That said...I find my hair's actually easier to deal with now that I'm wearing it wavy rather than trying to make it straight. Mine's chin-length. I guess maybe my standards aren't that high, but if it takes me more than two minutes to "do" my hair, it's a weird day.
2a/2b, fine and thin
cleansing: BS/ACV rinse weekly
PT: Gelatin PT
Conditioner: Desert Essences fragrance-free
Styling: LOTD Aloe