Minimally

using UnityEditor;
using UnityEngine;

/// <summary>
/// Modify the way audio is imported into Unity
/// Throw this script in the Editor folder. 
/// Place audio files in folders named with specific keywords listed below to automate how they are imported. 
/// Check Unity reference for details and such
/// </summary>
public class CBAudioImport : AssetPostprocessor

Minimally

using UnityEngine;
using System.Collections.Generic;

public static class PoolItExtension
{
	private static Transform pool;

	private static Transform Pool { get { return (pool == null) ? pool = new GameObject("   Pool It!").transform : pool; } }

	private static Dictionary<GameObject, List<GameObject>> container = new Dictionary<GameObject, List<GameObject>>();

Minimally

using UnityEditor;
using UnityEngine;

public static class LayerMenu
{
    /* PLACE IN EDITOR FOLDER.
     * Feel free to change hotkeys depending on your preference.
     * Modifier Keys % (ctrl on Windows, cmd on OS X), # (shift), & (alt), _ (no key modifiers) */

    #region Layer Visibility

Minimally

using System.Collections;
using UnityEditor;
using UnityEngine;

public static class ActiveMenu
{
    /* PLACE IN EDITOR FOLDER.
     * Feel free to change hotkeys depending on your preference.
     * Modifier Keys % (ctrl on Windows, cmd on OS X), # (shift), & (alt), _ (no key modifiers) */