When I pull up my hair in a ponytail or messy bun-like-thing I am made very aware of how fine my hair is. That is why this is my current go to, a little up and a little down and very very easy. Easy is what I need, there is a reason that I didn't go into Cosmetology. This style seems to work well with every type of hair too (long/short/thick/thin).
My hair is stick straight too, if I add a little wave with a straightener/flat iron I use a little hair spray to make it stick (not sticky). I use Jason's thin to thick **(very light scent, light hold). If I'm on day two (or three) hair I also use a little dry shampoo too (fave being Lush's No Drought). I love this dry shampoo...a little goes a long way and I've had this current bottle for a long time. I only wish it came as a shaker.
**A note on Jason's hair spray: Shop around, some prices are better than others.