Here is a tip that I picked up watching one of The Revit Kid's videos a while back, and it has proved to be sufficiently useful that I thought I would make note of it here. When drawing linework that you intend to constrain to Reference Planes in a Revit Family, if you are drawing a rectangle, use the Rectangle tool.
Not only does it allow you to draw four lines with two clicks, but it also allows you to draw those lines in place and then activate the constraints. No need to use the Align tool after drawing the linework.(As always, you can click on a reduced-to-fit image to see it full size. Use the Back button in your browser to return to the blog article.)