How much strain does deleting/emptying the trash have on the HDD? Is it safe to always empty after something goes in or should I do it like once a week or something? Does it even put that much strain on the HDD at all? Thanks, first time owning an iMac and replacing the HDD isn't as easy as it was on my Macbook. Don't want to do anything that could speed up the death of the HDD if I can avoid it.