I'll add that swap is required for certain sleep modes (hibernate) so there are reasons to use it. I typically create a swap partition that's 1.2x system RAM on

I'll add that swap is required for certain sleep modes (hibernate) so there are reasons to use it. I typically create a swap partition that's 1.2x system RAM on laptops for this reason, but don't for desktops (which also usually have more system RAM).