Now if you're going to read this blog, let me tell you that none of this matters. We're a bunch of monkeys that are genetically predisposed to only care about eating and screwing. But that doesn't mean you can't play the game and look your best while you're here.
Here are some basics that you need to know (if you're going to buy into this).
0. GO FOR "SIMPLE" AND "CLASSIC." IF YOU FORGET ALL OTHER RULES, REMEMBER THIS ONE.

Here is a shoe modeled after a 16th century leather block shoe.

Here's a brand new Bed Stu.
Not much change. See if people are wearing Nike Dunks in 400 years.
* Simplicity is always cool, because clothes are additive. If you are wearing some crazy shoes, you failed the test and you don't even know it.
* Simple doesn't mean boring, it just means simple (uncluttered, monochrome, no words or ugly designs). Simple is always stylish.
* Simple is CLASSIC - CLASSIC ALWAYS WINS.
1. MODERN SNEAKERS LOOK BAD. DON'T WEAR THEM UNLESS YOU ARE EXERCISING.
Sneakers are designed to help you accomplish something. That something is not "getting laid." They're designed to make you run fast like Bo Jackson. So don't wear them unless you're at the gym, running, or playing some b-ball after school. This rule has a fail-safe, because if you smell like John Goodman you should probably avoid women anyway. Like all rules, there are some exceptions:
* YOU CAN WEAR SNEAKERS CASUALLY IF THEY WERE DESIGNED BEFORE YOU WERE BORN.
This includes Converse All Stars, Adidas Superstars, or Keds (WARNING: TREND ALERT! Being trendy sucks, unless you set the trends. If you follow a trend, you have to be positive that the trend was CLASSIC before it was a trend. Confusing?). So yeah, if the sneakers suck at being sneakers, they are perfect. And they should be black, white, or gray, or have only one touch of color. If you wear high-tops, you should wear them under jeans, unless you are in high school, or in college and slightly fat and have more than one KMFDM shirt.
* IF YOU WERE BORN IN 1980 OR LATER, YOU CAN SAFELY ADD NIKE DUNKS TO YOUR ARSENAL AND WEAR SLIGHTLY LESS BORING COLOR VARIATIONS OF THE SNEAKERS LISTED ABOVE.
* IF YOU ARE AN ENTERTAINER UNDER THE AGE OF 45, NONE OF THESE RULES APPLY, BUT DON'T BE SURPRISED IF YOU MAKE A WORST-DRESSED LIST.
2. EVERY SHOE MADE BY EVERY MILITARY BEFORE 1970 LOOKS BAD ASS.
* If the shoes look like something grandpa Joe wore face down in the mud slaughtering Krauts, they are guaranteed to be in style forever.
* If you wear military boots, you should probably wear them under your jeans. This looks better in public and adds bonus "cool factor" points when your friends ask "are those Korean War paratrooper boots" and you slide up the leg. Your buddies will all get a boner and perhaps even buy you a cheap beer out of respect.
* Pass on wearing military footwear with en vogue military clothing; keeping your ensemble simple is the whole point of this exercise, and unless you are in the military you just look like you're about to shoot up a school.
3. THE BACK OF YOUR PANTS SHOULD HIT YOUR HEEL (FULL BREAK).

* Unless your mom still bathes you, you've probably heard this rule. That's because you look like a fool if your pants are too long, unless you front a Japanese hip-hop group.
4. BE CAREFUL IF YOU DECIDE TO GET SKINNY JEANS.

* This is a recipe for disaster, because skinny jeans typically violate rule 3 because they taper to a point. Because of this, the shoes really stick out. The only shoes that really don't draw too much attention with skinny jeans are Keds, followed by Converse All Stars. And you pretty much need to be under the age of 30 to pull off skinny jeans, anyway. However, emo girls dig this look (best paired with large, black-rimmed, non-functional glasses and an ironic distressed tee) so it may be worth it is you're into pasty chicks.
5. MATCH YOUR BELT TO YOUR SHOES, LIKE YOUR MOM SAID.

* If you are too lazy to find a matching belt, just un-tuck your shirt.
So there you go. And here's a bonus rule - have some old shoes lying around for when you're walking your dog. Better shoes = more expensive (almost always), and more expensive = more durable (sometimes). But to make them last, you need to treat them with respect. We'll delve into that another time.