What New(ish) Perl features Do You Use?

Over on LinkedIn, someone asked me “What core PERL[sic] features do you use regularly that are new since 95?” It’s hard to be sure as the perldelta files only seem to go back to 1997 (for example, when were qw(…), q(…) and qq(…) added?), but here’s a quick list off the top of my head. […]