When you stumble upon a handy hack [1], the best thing to do is share it with friends who will appreciate it as much as you do. But when you become a mom, these gems can feel more like true lifesavers among mom friends. Luckily for everyone, one mom posted about her recent breastfeeding trick [2], and people are obsessed with it because it's just that good: teething "milksicles."

This idea first took off after Tasia Blackwell shared a video of her baby "devouring his milksicle" that she made from frozen breast milk. She explained that this DIY [3] (and free!) treat not only soothes his teething pain but also fills him up in a nutritious way. So basically this trick helps with teething, keeps little ones cool, doesn't cost anything, and is healthy — it's no wonder the idea is going viral just in time for Summer!