Buffy used a crossbow for the first time in the episode 1.07 Angel, when she went to hunt Angel after dicovering he was a vampire.

A crucifix is a Christian symbol which depicts the cross on which Jesus was crucified. It can be used to repel vampires, and will burn their skin if it touches …

The following dialogue is from The Price:

Second smoothie server: “Look out! The dude’s got Ebola or something.”
Groo: “Is Ebola a weapon forged in magic?”
Lorne: “No, forged in monkey poo.”

In Graduation …

Drusilla uses an electrical taser to stun Buffy in 5.14 Crush. Dawn also uses one of these on Xander in 7.21 End Of Days. Tasers have also been used in Angel, in …

Faith steals a bow and arrow in 3.14 Bad Girls, which she uses to shoot the courier in 3.19 Choices, and Angel in 3.21 Graduation Day (Part One).

The Mayor gave Faith an intricate knife as a present in 3.19 Choices. She used it to kill one of the Gavrok spiders and Buffy then took it away. Buffy stabbed …

The Ferula Gemina looks just like a stick or staff, but has the power to split a person in half, putting positive and negative personality traits into two separate bodies. …

Traditionally, garlic is supposed to ward off vampires, though no explanation is properly given why. Buffy uses garlic, hoping to put off Spike if he tries to go to her …

Holy Water is water that has been blessed by a member of the clergy. Like other religious symbols (such as the crucifix) it burns vampires, and can even kill them …

Buffy’s cross-like throwing weapon in the episode 3.01 Anne is called a hunga-munga. It was purchased from a magazine by the props department. The effect of it spinning through the air …

In the episode 2.14 Innocence, when Buffy hoists the rocket launcher to her shoulder, about to obliterate the Judge, Joss Whedon says in his DVD commentary that:

“I’ve never loved her more”.

Buffy used the sword Kendra gave her in Becoming, Part One to send Angel to hell in Becoming, Part Two.

Buffy shows some ingenious ways of killing demons, and the gang have some great suggestions too. Here’s a list of alternative ways of killing, seen or mentioned on the show:

Hummus …

In 4.15 This Year’s Girl, Xander tries to repair the faulty taser-gun which Maggie Walsh gave to Buffy in The I in Team:

“Sure. As soon as I get my master’s …

In 7.06 Him, whilst under a love spell, Buffy goes to kill Principal Wood using a rocket launcher. She used one of these to kill the Judge in 2.14 Innocence so it’s …

It’s incredibly strange that crosses/holy water hurt vampires, as Giles tells the Scoobies in 1.02 The Harvest that demons roamed the Earth for centuries before Christianity even began.

Spike moans about the lack of weapons in the Summers’ house. Where did all the weapons (last seen in 5.22 The Gift) from the trunk go?