Posted by Merryn | Posted in Craft Tips and Tricks | Posted on 19-04-2011 | 3,010 views
Masking tape is very useful for this. Stick the tape along the line, then paint right up to it. You can paint a little over the edge. Wait for the paint to dry completely, then pull off the tape and you will have a perfectly straight line. This is a good way to paint shapes like triangles and diamonds.