What would you buy with a $100 Amazon gift card? I would put it towards a Vitamix blender. If shopping on Amazon is your thing, then Life360 has an great blog giveaway that you need to enter. One lucky commenter each week is going to receive a $100 Amazon gift certificate! Just leave a relevant comment on any of their posts. You can enter up to 10 times each week. Every Friday, a new winner is chosen.