Whether you're a recruiter, parent, writer, HOA president, or all of the above (and more), there are apps that can make your life easier. (There are also apps that can waste your time, disappoint you, and make your life harder. We won't go into those here.)These are a few of the standouts that have proven themselves to reliably solve day-to-day problems for me. I think you'll love them, too.Sideline(iPhone, Android)Hate giving out your personal mobile phone number for work? I do too, but sometimes it's the only way to make sure I can be reached.For years I've either had to carry two phones (one work, one personal), or consolidate to just one, commingling work and personal so that any given ring could just as easily be my mom as it could a customer or a member of the media. It's cumbersome, at best.