Twenty Tips for a Twenty Year-Old

Today, I came across several useful links for the young and young at heart on reddit and thought I'd share them.

Reddit's Tips for a 20 year-old

As always, take with a pinch or two of salt:

• Today is my 20th birthday. Give me 20 tips for things you wish you knew when you were 20.
• About a week ago I asked for 20 tips on my 20th birthday, ...
• Here is the list for those interested, condensed. 

PROTIP:(S)

While we're on the subject, many good tips are to be found here:

• What is your best PROTIP?
  My Favorite:
  "Protip: You can't fuck a crazy-girl sane. / Lord knows I've tried."
  Runners up:
  "Protip: Never go against a Sicilian when death is on the line."
  "Protip: Put toilet paper into the bowl before taking a dump to reduce splashbacks and stains on the bowl."  I've been doing this one for years and had no idea it was a PROTIP.

In following articles, we'll continue to provide our own tips as well as gathering those from readers.  We'll highlight the best advice, and try not to dump on the not-so-good.  What are your best tips, gathered from experience?