100Pcs Tea Filter Bags, Disposable Empty Tea Bag with Drawstring Safe & Natural Material, 1-Cup Capacity, Fill your own Tea Bags for Herb, Coffee & Loose Tea by Eranthe

These have actually made my life a little bit better. I drink herbal tea in to-go cups all winter long both at home and on the go. These work better than tea balls, are microwavable, disposable, and I can put fancy loose tea in them. Sometimes it's the minor conveniences that make all the difference...