How can I plug my in-line stand-alone microphone, into my laptop that has no more 3.5 mm audio jacks?

Solution 1:

We can see in the image that the audio jack supports both speakers and mics given it's a headphone with mic picture.

So you could buy an adapter that will receive the mic and the speakers and transform it to a "three line" male 3.5mm audio jack.

Luckily, such things... EXIST!

There are other adapters that will let you connect the speakers and the microphone to a USB port:

Finally there are audio jack to USB adapters for only one jack:

Sadly, there is no way to do it without some type of adapter (either the one that uses the jack or the one that uses a USB port), even if you DIY, you'd still need to buy the parts.