Creates a new editor window to list all the scenes in your project, Improves workflow if you have a ton of directories and scenes.

SceneProjectView.cs

using UnityEditor;
using UnityEditor.SceneManagement;
using UnityEngine;

public class SceneProjectView : EditorWindow {
    private GUIStyle alternateColor;
    private Texture2D tex;

    [MenuItem("Window/Scene Project View")]
    public static void Init()
    {
        SceneProjectView window = (SceneProjectView) GetWindow (typeof (SceneProjectView));
        window.autoRepaintOnSceneChange = true;
        window.Show (true);
    }

    private Vector2 scrollPosition;
    private string[] assets = new string[0];
    public void OnGUI()
    {
        alternateColor = new GUIStyle ()
        {
            normal = new GUIStyleState ()
            {
                background = new Texture2D (1, 1)
            }
        };

        alternateColor.normal.background.SetPixel (0, 0, Color.white);

        if (assets == null)
            assets = new string[0];

        if (GUILayout.Button ("Refresh")) {
            string[] guidList = AssetDatabase.FindAssets ("t:Scene", null);
            assets = new string[guidList.Length];
            
            for (int j = 0; j<guidList.Length; j++)
            {
                assets[j] = AssetDatabase.GUIDToAssetPath (guidList[j]);
            }
        }

        scrollPosition = EditorGUILayout.BeginScrollView (scrollPosition);
        int i = 0;

        foreach (string asset in assets)
        {
            string[] scenePath = asset.Split('/');

            if (i % 2 == 0)
                EditorGUILayout.BeginHorizontal (alternateColor);
            else
                EditorGUILayout.BeginHorizontal ();

            GUILayout.Label (AssetDatabase.GetCachedIcon(asset), GUILayout.Width(EditorGUIUtility.singleLineHeight + 2.5f), GUILayout.Height (EditorGUIUtility.singleLineHeight + 2.5f));
                if (GUILayout.Button (scenePath[scenePath.Length - 1].Remove (scenePath[scenePath.Length - 1].Length - 6), "Label", GUILayout.MinWidth (100)))
                    EditorGUIUtility.PingObject (AssetDatabase.LoadAssetAtPath<UnityEngine.Object>(asset));
            if (GUILayout.Button ("Load", GUILayout.Width(40)))
            {
                EditorSceneManager.SaveCurrentModifiedScenesIfUserWantsTo ();
                EditorSceneManager.OpenScene (asset);
            }
            EditorGUILayout.EndHorizontal ();
            i++;
        }
        EditorGUILayout.EndScrollView ();
    }
}