We are moving into a new apartment and we want to paint the walls in colour. They are already freshly painted white so basically we would only need one coat added. We never did this before but I know there are several steps to be followed (paint the corners first, with the brush, then put masking tape, then paint the rest with the roller, etc) Could someone help with some more details on what are these steps or maybe there is a "how to website" somewhere with this info...