I don't buy the huge plastic jugs of detergent or softner anymore.
I actually love the product I use. It even softens clothes, which is not advertised, and cleans even my husband's dirty clothes. The softner is great too. I cut the softner into 4ths and it works great and saves money, I cut the laundry ones into half and saves money and still gets them very clean.
I feel like I am helping the environment by not buying those huge plastic jugs, and even IF it didn't help, I would buy them anyway because I like the product better than the plastic ones.