There are also many tutorials on you tube, one of my favourite is cutepolish.
If you follow me on instagram you will see I try to update my nail colour every week. I tend to like darker colours for fall and winter and then go back to lights and brights in the summer. Another trend I like is painting one or two nails a different colour/shade or applying nail art/decals. My favourite are the sally hansen salon effects. I usually do this to my ring finger.
essie nail colours
OPI up front and personal, with sally hansen salon effects polish strips
Here are some of my favourite nail polish colours, mostly OPI
lights / neutrals
fun / brights
save me, heart throb, elephantastic pink, hot & spicy, atomic orange, bright lights big colour
i have a herring problem, lugerne-tainly look marvelous, catherine the grape, wooden shoe like to know,
brisbane bronze, my private jet
mean & green, pearl formidable, nightfall, baby goth girl, rocker