I have recently given up on having any kind of cute hairstyle for a while, a sacrafice Im willing to make to look good and have long hair...lol.
Really though, u can make simple styles look neat and pulled together. For example, one thing that works for me is after I work out I either shampoo with a gentle one(no more than 2 X week) or conditioner wash unless I didnt sweat to much or Im too lazy.
I put in my products on wet hair and pull it back to let it start drying in a ponytail. After about 15 minutes I let it loose because it will dry faster. When its mostyl dry, I braid it up for a braid out and sleep in it like that. The next morning I either wear it out, up in a clip, or in a textured looking bun(high low or to the side) with wavy bangs out in the front. Sometimes I add accessories(flower chopsticks or a cute scarf as a headband) to change it up. With the textured look I dont have to worry about it being straight because thats just not goin to happen with
A. Me living in humid FL
B. The amount that I sweat
I save the straight styles for special occasions. HTH!