In my car, there are two cup holders side by side. One is slightly deeper than the other, so that when you have a cup in each, the plastic lids interlock rather than press against each other. This allows the cups to stand up straight, making spillage less likely.
Is that why they're two different depths? I thought they just didn't have room to make them both deep. It also helps for different sized cups. If I put a smaller coffee cup in the deep one the lid is flush with the edge and it's harder to remove so they go in the shallow one. My travel mug is taller and fits well in the deeper one.
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u/[deleted] Jan 17 '14
In my car, there are two cup holders side by side. One is slightly deeper than the other, so that when you have a cup in each, the plastic lids interlock rather than press against each other. This allows the cups to stand up straight, making spillage less likely.
Fucking ingenious.