Quick Blender Tips - Found by accident

I thought it would be fun/helpfull to share some tips you've found by accident but fits within the category 'I've found the duck that can lay gold eggs'.

Draw bezier curves as a pencil:

Don't know if a lot of people know this function but it felt like the invention of sliced bread to me.

shift+a, import bezier curve, tab into edit mode

shift+right click (when left click select enabled) to draw curves as pencil.

Within the curve option menu I can easily make this a solid 2d or 3d shape. Just extrude it and then in object mode alt+c the shape to convert to mesh from curve, and start sculpting/tweaking the mesh!

Please share your tips!