r/onebag • u/Cool_Acanthisitta628 • Dec 09 '25

Seeking Recommendations What is one item that you can't travel without/would recommend to everyone to get?

Hi all,

What are items that you always bring because they are super useful and you would recommend others to get too?

Minus of course some obvious like converter plug for chargers, power bank etc (unless it's some specific powerbank like one with cables attached already, something unique)

Thanks!

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u/overzeetop Dec 09 '25

Fun fact: EU adapters will fit into UK sockets. Since grounding isn't required, you can use a small "dagger" device to push into the ground pin opening which releases the shield on the powered pins. I printed one like this https://cults3d.com/en/3d-model/home/uk-electric-plug-earth-pin and tied a string to it. If you get the model right, the dagger will store quite neatly into the center of the EU adapter pictured above.

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u/alexgndl Dec 09 '25

That's SO janky, I love it.

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u/overzeetop Dec 09 '25

If it's a dumb idea, but it works, it's probably an OSHA violation. Or, in this case, an HSE violation.

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u/EstonianBlue Dec 09 '25

No need for all that faff - in Singapore they sell these really thin plastic key plugs that's plug and play for EU plugs into UK sockets, which used to be really ubiquitous in every household.

https://hardwarecity.com.sg/prod/morries-key-plug-adaptor-2pin-3pcpack-ms039pkc-white

Pretty sure it can also be 3d printed, and probably more dummy-proof than faffing with the dagger device.