A friend texted asking about weaning off formula and I realized I'd given the same straw cup recommendation to maybe ten people individually but never written it down. So here it is.
The OXO Tot Transitions Straw Cup is the one. We tried several cups with Cleo before landing on this, and then just started Mouse on it immediately because why reinvent the wheel. Both kids loved it. The handles pop off when they're ready to hold it themselves. The straw is soft and the valve actually works (spill-proof is a strong claim in the baby cup world, but this one earns it). It's easy to clean, which sounds like a small thing until you've spent ten minutes trying to get milk residue out of a novelty sippy cup with seven parts.
For the fuller story on switching from formula to milk and dropping bottles entirely, we wrote that up here.
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