save or waste

hi, good day
i wonder if i can save or make money by selling things that i don't need or don't use
i meant things that are obviously in good n working condition
i wonder why barter trade are not 'in fashion'or'in action'
i believe there are people who have good things for exchange/selling at low cost
i rather this than to throwing/hoarding things
i hope something can be done or shared

lu here
nov 2009