When you're job-searching, it's okay to cast a wide net.  You just don't want to waste time applying for jobs you'll never get, or wouldn't realistically WANT.  Here are the top three signs the job you're applying for isn't worth the effort.

#1.)  You're Way Underqualified.  If you're close, then go for it.  But if you're missing any key skills, or you only have three years experience and they want EIGHT, you probably shouldn't bother.

#2.)  You Have to Convince Yourself You Want the Job.  A lot of people have done this:  You see a job that clearly says you'll have to work weekends . . . or you'll have to relocate . . . or whatever.

--And even though you WOULDN'T actually be willing to do those things, you apply for it anyway, because you like SOME aspects of the job description, and you're desperate.

--But in the end, if you're not willing to meet ALL of the requirements . . . especially big ones like relocating . . . it's not the right job.  And if you end up getting an interview or an offer, it'll just be a waste of everyone's time.

#3.)  You Think It Might Be a Scam.  The first clue that a job listing isn't legit is when it sounds too good to be true.  And the next clue is when it's missing a lot of key information . . . like a company name, or a link to a website.

--You especially have to be careful when you're looking at jobs on Craigslist.  If there's ever any doubt, just Google some of the text from the job posting.  And if it's a scam, chances are other people are onto it.  (Forbes)

Billy Joel was doing a master class at Vanderbilt University a few weeks ago and when he took questions, Micahel Pollack asked if he could play "New York State of Mind" while Billy sang it.  Billy said sure, and luckily someone captured it on video.

Have you ever tried to buy tickets to a big concert, but they sold out five minutes after they went on sale?  It's more common than it used to be.  And if you still want to go, you end up having to pay WAY over face value on sites like StubHub.com.

--For example, Justin Bieber was at the Bridgestone Arena in Nashville on January 18th, and there were just under 14,000 seats available.  But only about 1,000 tickets were left when Ticketmaster started selling them on May 23rd of last year.

--So what happened to the other 13,000 tickets?  Well, check out the top five reasons it's so hard to pay face value for good tickets these days.

#1.)  Credit Card Presales.  For a lot of concerts, companies like American Express reserve a certain number of tickets and hold presales, where cardholders can buy them before they go on sale.

--Which is okay.  But about half of those tickets end up in the hands of brokers, who resell them for twice what they paid.

#2.)  Fan Clubs.  A lot of bands allocate a certain number of tickets for fan club members.  But not all of them are actually "fans."

--A lot of scalpers join fan clubs multiple times, and then use several different credit cards to buy up as many tickets as they can.

#3.)  Some Bands Scalp Their Own Tickets.  Seriously.  They just put something in their tour rider that says a certain number of tickets have to be set aside.  Then they resell those tickets on sites like StubHub.

--It's actually more common than you might think.  Katy Perry was criticized for doing it after TheSmokingGun.com got its hand on her tour rider back in 2011. 

#4.)  You Have to Compete with "Scalper Bots".  Which are computer programs designed to flood a particular site with ticket requests as fast as possible.

--Meaning scalpers don't have to go through the same process you do every time they try to buy tickets.  They just let a computer program place each order, which is obviously a lot faster.

--Most ticket sites have safeguards to stop it, like when you have to type in a specific word at the bottom of the page before it accepts your payment.

--But scalpers get past that by hiring real people in places like India or the Philippines, who manually type in whatever they need to after the program takes care of the more time-consuming stuff.

#5.)  Inflated Service Fees.  It used to be that no matter how good your tickets were, you paid the same service fee as people in the back row.

--But a while back, Ticketmaster realized that if you're willing to buy EXPENSIVE tickets, then you're probably willing to pay a higher service fee too.  So they upped it for premium seats . . . meaning good tickets are even MORE expensive now.

--But Ticketmaster doesn't necessarily get all that money.  Some big bands negotiate into their contracts that THEY get a percentage of the service fees.

--Then they save face by offering tickets at a reasonable price.  And when people complain about the crazy service fees, they blame Ticketmaster.

(Buzzfeed)