How to disable TRIM on SSD(s) under Linux Mint?

I rarely ever write anything (large) to SSDs on many machines of my own, an example could be the use of one laptop as a TV *viewer* only, another my mother's laptop, which she uses just for banking. (If it matters, I use Linux Mint on all machines.) Therefore it comes as annoying the weekly TRIM, as it takes a rather long time. But how to disable it?