I check the sender. Looks spammy, hit spam. This also sends the mail to Trash. Then check the subject. Looks spammy, hit trash. This likewise sends the mail to

I check the sender. Looks spammy, hit spam. This also sends the mail to Trash. Then check the subject. Looks spammy, hit trash. This likewise sends the mail to trash. If it looks like a newsletter or subscription I don't want, I typically don't want updates more than once a month as there's RSS for feeds and email is not your push feed to my eyes, I scroll to the bottom and click unsubscribe. But check the link first. If the link's to a 3rd party domain i.e. not the same as the email comes from I hit spam as there's no way of knowing if it isn't phishing. If it doesn't link to an unsubscribe page but some 'manage my email preferences' page it's in violation of my personal compliance so I hit spam. If the email doesn't have some form if text below the fold on my not that low resolution screen I'll delete it. Having done this pruning, which for 100 mails only takes a couple of minutes if that, I go back and deal with what seemed more important on first pass. That's my way. YMMV.