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The Cielo Journal

Honest guides on carrying your medicine well, from nitroglycerin tips to the craft behind every pill holder. Written by our founder, Chris.

What Actually Fits in a Keychain Pill Holder
Latest · sizing

What Actually Fits in a Keychain Pill Holder

Two bore sizes decide everything. Real measurements for hearing aid batteries, earplugs, a wedding ring, a YubiKey and stormproof matches.

By Chris Boerner · Sep 14, 2026
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The Best Pill Holder for Travel: What to Look For
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The best travel pill holder is waterproof, durable, and rides on your keychain. Here's what to look for — and what actually...

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