Almost quit EOS because I forgot to set up a swap

I have read the post, twice, and i’m convinced that swap is indeed a handy tool. I currently don’t use any swap with 32GB of RAM i thought it would not be necessary but apparently i’m wrong.

What remain is if you do want to have swap how big does it have to be? The opinions are from like 6GB until half the ram (without hibernation that is)
@dalto speaks of a few GB in this thread:

Any advice in my case?
For the record i have never had a OOM on my system