First and the most obvious, you can get a gun. Next, you can get pepper spray or a tazer gun. You can also learn any kind of martial art or boxing.
Hope this helps!
Another answer: It is not a good idea for any civilian to carry a gun. And there is no need to spend a lot of money on a good self-defense weapon. Common, everyday objects, can be used as improvised weapons. Examples: 5" metal alloy mini flashlight; car keys; wasp and hornet spray; belt; broken tree branch. I don't recommend the use of any weapon if you can help it. Rather you should stay aware and alert, and try to avoid any places or situations where it may become necessary to physically defend yourself.
First answer guy: Good point about the gun and the stick, but what if he/she is crippled or physically disabled.
Yo momma? Oh yeah
Self defense.
Fightback, A Good Defense, Best Defense, Defend Yourself
Swans have beaks and such to protect themselves, but they would normally fly away since they are not very good at self defense.
Good Day Sacramento - 1995 Self Defense at Good Day Sacramento was released on: USA: 28 March 2011
Self Defense
self defense of tiger
Self defense is necessary in the event that someone or somethings is trying to harm you. It can be an important skill in the event you are in need of protection from an attacker
Horned lizards spray blood from the corners of their eyes in self defense. Camels sometimes spit, not always in self defense, but sometimes it is in self defense. Chinchillas spray in self defense. Some snakes spit in self defense, and so do cats. Skunks spray a liquid from their anal sacs in self defense.
Integrated Base Defense or Improvised Biological Devise
One good solution is Armed Self-Defense.
Traditional self defense weapons can be purchased online, at sporting good stores or martial arts centers. Other self defense weapons such as mace, pepper spray, hand guns and taser guns can be purchased at trade shoes and gun dealers.
See section 197 California penal code for self defense, which includes use of deadly force in self defense.