Go to File > User Preferences. Click on the following tabs and check the settings.
Input Tab: Change "Select With" to LEFT
Add-Ons Tab: Search for the following add-ons. Click on the checkbox to enable:
Images as Planes: Allows the user to insert images into Blender.
Sapling Tree Gen: Generates trees and shrubs from inputs.
A.N.T. Landscape: Generates landscapes from inputs.
Rigify: Inserts a premade human skeleton for rigging meshes.
Archimesh: Generates architectural elements (doors, windows, stairs, etc).
Archipack: Generates architectural elements (doors, windows, stairs, etc).
File Tab: Make sure Auto-Execution: Auto-Run Python Scripts is checked.
Save the User Preferences.
Unit Resources:
1.1: Future Car
Starting with Blender Tutorial: Learn Blender in Under an Hour! (Blender For Noobs)
Adding a Color with Blender Tutorial: Blender 2.6 Basics #08: Adding Colors & Materials (BornCG)
Saving a Render Tutorial: Blender Save Image as JPG or PNG (ecskills21) or Blender tutorial) How to save FULL QUALITY Rendered images and screenshots
1.2: Maze
Using the Extrude Function Tutorial: DPTV Blender 2.79 Tutorial 3 (Extruding)
1.3: Pokeball or Ball
Creating Pokeballs in Blender Tutorial: How to model Pokeballs in Blender (Alex Telford)
Creating 3D Football in Blender Tutorial: Blender 3D: How to model and texture a realistic Football (FirechildVideo)
1.4: Complex Object
Sculpting with Blender Tutorial: Blender Tutorial - Sculpting in Blender Part 1 of 2 (BlenderMania)
Creating a Wood Cup in Blender Tutorial: Blender Tutorial For Beginners: Cup with Wood Texture (tutor4u)
1.5: Animal / Anime / Character / Pokemon
Creating a Deer with Blender Tutorial: Blender Tutorial: Low Poly Animals (Manuel Graphics)