If you are looking for affordable lip liners then you may want to try these Essence lip
liners. They are soft and creamy and easy to use. They are in a wooden pencil form so you just sharpen and use them.
The two colours I have tried are 'hot chocolate' - a brown colour and 'satin mauve'- a wine plum colour, both of which are great to outline your lips and then add your lipstick.
They are $2 each from Priceline and definitely worth checking out.
What lip liner do you use?