Overview
You can be tight with money all you want, but you should never be tight with your time! If someone needs a few dollars, it's perfectly fine to tell them you aren't in a position to help them out right now. They will totally understand. But if they need a few hours of your time, do whatever you can to give it to them. Even if you would rather be off by yourself, right now you need to be with your friends whenever they need you. Show them that you are responsive to their needs.