Boxers- Clearly these seem to be the underwear of choice for most men. Peer pressure! However, this does not excuse boxers with juvinile prints, slogans and anything at all from Joe Boxer. If they have holes in them, are from a past relationship or have stains on them...please, throw them out!
The general word is that boxers are sexy(mostly because they cover up a lot and leave something for the imagination). Also, if there was a fire in the middle of the night and you had to run out of the house, you would rather run out in boxers than briefs since they are somewhat shorts like. Anything else would be embarrassing.
Briefs-(Tighty-Whities) Briefs have a bad rap. One must distinquish between the BVDs, Fruit of the Looms, Hanes, etc. you wore when you were 10 and more upscale brands. These better brands would include 2xist, Cin2, Calvins, DKNY, etc. And they aren't just white and cotton anymore; you can get them in a variety of colors and fabrics. If you haven't considered briefs in a while, check them out.
Boxer-Briefs- Boxer briefs(and mini boxer briefs) seem to be worn by athletic types or guys who don't like briefs and don't like how regular boxers have so much fabric. Men say they like them because they are comfortable, conforming and offer support. Again they come in quite a wide variety of fabrics and colors.

Bikini Briefs-You better be European, other wise there is no excuse.
Going Commando-Wearing nothing but pants and a smile is certainly your preogative. If you do so, however, I would politely suggest keeping the state of your affairs....to yourself while in public. Oh, and be carefull when zipping up after a trip to the men's room.
Just think of how one life can make a difference and impact several lives. If you did not exist just think how that might impact your loved ones. If you did not exist think of how that might impact your friends.
If you did not exist think of how that might impact the people you come in contact with daily only for a moment. One life truly does touch several lives daily and is important in the game of LIFE.
Running Tips:
1. You should select the proper running shoes.
2. Your running form is very important for preventing injuries. Always keep your chin up and imagine someone is pulling you from the chest with a string. Your fingers should be slightly touching as if you had a potatoe chip between them and you do not want to break it.When you land on your feet you should land on your heal and role your feet to the top portion of your foot to push off.
3. You should always drink plenty of water to keep yourself hydrated.
4. You should do strength training with your legs, ankle, and feet to help prevent injuries.
5. Do not wear cotton shirts, shorts, or socks because they may cause bleeding due to the friction created when running. Use coolmax alta polyester.