Since they don't bloom and they grow slowly, pothos should be fed monthly with a liquid or water soluble plant food like Bachman's Excel Gro at half the recommended rate. Pothos prefer a good loam-based mix like Bachman's Exceloam. They seldom need repotting and the roots dislike disturbance. Repotting every other spring would be enough. Be sure the container has good drainage.
Dust can build up on pothos leaves and needs to be removed.
An occasional wipe with vegetable oil will help the leaves shine. Avoid using commercial leafshine product. Pothos are propagated by tip cuttings. They can even be rooted and grown in water, even though the plant, when potted, cannot stand to have its roots waterlogged. My plant grows so slowly and has a long distance between leaves.