In this tutorial you will learn how to create a fluorescent lightbulb. We will work a lot with spline vertices and we'll do some box-modeling as well.
In the Top View create a Helix shape preferably starting right in the center of the grid. Go to the Modify panel and set its parameters as follows - Radius 1: 30, Radius 2: 30, Height: 80, Turns: 2.75, CCW rotation.
Press A on the keyboard to activate the Angle Snap, then - in the Top Viewport - Shift+Rotate the helix 180 degrees to clone it. Choose Instance and hit OK.
We have just opened our tutorial directory! Feel free to submit tutorials hosted on your website or other online tutorials that you think are worth mentioning.