For things which allow partial refills1, don't fill them entirely. If it's something with a pump or other internal component, leave extra space for that as well.
Shaking salt out of a packed shaker is hard, and a full bottle of water is begging for accidents.
Most consumables are meant to be, you know, consumed, so the their containers are designed for being partially empty. Not for being full, and definitely not for being overfilled. Nothing can be designed for being overfilled by definition, but there are certainly containers which handle it more gracefully.
Regardless, you can't overfill by accident if you deliberately slightly underfill.
Never hurts to have a little margin.
- Rew
Nightly Notes
This is an addendum to nothing should be full, which was focused on things which fill up and need to be emptied, rather than things which need to be refilled. A real oversight on my part, not addressing both in that one. Oh, and double filling too.
Of all the topics to get multiple posts in the first few months, filling things would not have been on my bucket list.
Oh well.
- Rew
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Obligatory counterexample toilet paper. ↩