We have the 4 precious 'R' s in life : reuse, refuse, recycle and reduce. we shouldn't waste our money and things. A lot of people can't even afford. If we don't want that thing we could always refuse it. If we have any thing which is finished we could alway recycle it. If we have A lot of things we could always reduce it by giving to others. And if we have any pen where ink has finished we could always reuse it instead of throwing it away. We could always use these simple methods to avoid complications in life. Money won't last long but these things could last until we decide to have it. So never waste things instead always conserve things.
I hope this helped u