Ways to Sign Your Paintings
Since artist varnish is meant to be removed in the future when it is dirty and a new coat applied, it is helpful to write in permanent marker on the back edge, which varnish you used. The person cleaning the painting in the future will thank you.
Julie Caves • How to Varnish a Painting in Oil, Water-Mixable Oil or Acrylic - Jackson's Art Blog
Some of my favorite artists make “to-draw” lists. David Shrigley will make a huge list of fifty things to draw a week in advance. Having the list means he doesn’t have to waste studio time worrying about what to make. “The simple thing I’ve learned over the years is just to have a starting point and once you have a starting point the work seems to ... See more
Austin Kleon • Keep Going: a book by Austin Kleon

You want to know how to paint a perfect painting? It's easy. Make yourself perfect and then just paint naturally.