We all hate lint. Yuck! But there are varying degrees of lint. Those two pieces of lint on your glassware aren't acceptable in a cleanroom environment.
Let's get one thing out of the way right away.
Period. End of discussion.
Okay, not really.
When it comes to cotton, a tighter weave means less lint. Think kitchen dish towel (less lint) versus terry towel (way more lint). However a tighter weave also means less softness. With cotton, the softer the item the more lint you get. There does come a point with used cotton items where it's kinda soft and doesn't have a lot of lint. The sweetspot. We love the sweetspot! But then it passes and the cloth becomes a lint factory. It might be soft but with that softness comes more lint as age causes the little fibers to separate.
If your tolerance for lint is really, really low - forget about cotton. For everyday use, microfiber cloths are hard to beat as lint free rags. They are durable and pick up lint like a magnet. The next step up are the super low lint critical cleaning wipers and finally the best of the best, ISO rated Cleanroom wipers.
Class is adjourned.