USB 5 Pin Adapter Keychain. Yep, this little doohickey would make my life infinitely better in every way I’m sure, judging by the number of times I’ve sat staring impotently at a wrong end of the wrong type of USB cable with an aaargh on my lips and a sigh in my heart. $5.00.
Functional and mini adapter for most of the USB devices.
I’d rather a little joiner with an A socket and a B socket so I can turn any standard A plug to B plug cable into an extension lead.