Solve this riddle I made! :D?

A heart :)

<3

i would say heart but everyone else said that so i say appendix :) :

its useless cause you really don't need it it's for everyone like everyone has it but its not used by everyone because some people have it removed and if you haven't had it removed its inside of you (did anything i just said make sense? lol probably not :P)

I think it's heart too,

but that answers already taken. D:

So I'm gonna say hands.

(Yes i know your hands aren't inside of you

but they are warm,but they can be cold too,and when they are,

they're pretty much useless.) :D

See my logic. XD

since the heart is taken i say the weather. who ever questions the heart actually?

ppl question the weather since there is always a weather man.

its sometimes warm or cold or useless.

its for everyone and some take advantage of it.

and we breath it in. its weather.

Yeah It's Already Been Said But I Think It's A Soul Too. :)

A soul, I've been told that I've had a cold or useless soul......

since someone already said heart, i'll say small intestine :P

This sounds dirty.