With extensions you can both create more volume and keep your curls. Are there any things that are important to remember?
There are many different ways to create a fantastic look with extensions. I usually use a Clip-on set and attach the clips before styling, that seems to be the easiest.
For those who think it's difficult to look after such thick hair you can also curl your hair and extensions before attaching. It's important to remember to curl your hair and the extensions in the same direction. Unless you want to have a more messy look, in which case you can curl in opposite directions.