If I'm not feeling so hot during the day - maybe I couldn't sleep, and the kids are wearing me out, and I'm not feeling very cute - I might go and curl my hair and put on some lipstick and put some fun music on. And that builds my confidence. It's the small things. You have to find out what works for you.
When my hair is curly, I use Suave coconut conditioner. It's not a leave-in, but I use it like one. It is so light and really brings out my hair's curl. A lot of leave-ins are too heavy, but this one is just perfect. When it's straight, I love Frederick Fekkai Tech Shampoo & Conditioner and their Olive Oil glossing cream.