Contigo® Shake & Go Autoclose Mixer Travel Bottle, 16 Oz, Citron, Plastic

I keep buying these bottles because they are so handy. My kid drinks a shake every morning for breakfast and he's far more likely to actually drink it if I put it in one of these. I make smoothies for myself and these are great. I can put them in an insulated bag without the straw in and the smoothie will stay cold till I need it. No worries about it dumping out in my bag. I like this size because it's shorter than the next size up and actually fits in the top rack of my dish washer.

I have a toddler and a newborn, so simple pleasures mean a lot. One of those is my daily iced chai, either homemade or from a cafe. This tumbler makes both better - easy to mix and drink at home, or take on the go to reduce waste. Every time I use it it makes me happy.