Coroutine Helper for when you're lazy and like to use coroutines.

CoroutineHelper.cs

using System.Collections;
using UnityEngine;

public class CoroutineHelper : MonoBehaviour
{
	private IEnumerator routine;

    public bool isDone
    {
        get { return done; }
    }
	private bool done;

	private IEnumerator HandleRoutine()
	{
		yield return StartCoroutine(routine);
		done = true;
		Destroy(gameObject);
    }

	public static bool HelpersDone(CoroutineHelper[] helpers)
	{
		for (int i = 0; i < helpers.Length; i++)
		{
			if (!(helpers[i] == null) && !helpers[i].isDone)
			{
				return false;
			}
		}
		return true;
	}

	public static CoroutineHelper Init(IEnumerator ro, bool startNow = false)
	{
		CoroutineHelper coroutineHelper = new GameObject("CoroutineHelper").AddComponent<CoroutineHelper>();
		coroutineHelper.routine = ro;
		if(startNow)
			coroutineHelper.Go();
		return coroutineHelper;
	}

	public static CoroutineHelper[] InitArr(IEnumerator[] ro, bool startNow = false)
	{
		CoroutineHelper[] array = new CoroutineHelper[ro.Length];
        for (int i = 0; i < array.Length; i++)
        {
            array[i] = CoroutineHelper.Init(ro[i]);
            if (startNow)
                array[i].Go();
        }

        return array;
	}

	public void Go()
	{
		StartCoroutine(HandleRoutine());
	}
}