What you give doesnt necessarily have to be something material. It can also be time, effort, talent, service, or even an affectionate feeling.
Just like all things in life, giving has its limitations. Being too generous can have its toll. Your kindness might be taken advantage of and people might abuse your good intentions. Beware of individuals who are continuously seeking your aid. It's better to teach them how to solve their problems than to always attend to their needs.
As one saying goes ...
"Give them some fish and you'll feed them for a day. Teach them how to fish and you'll feed them for a lifetime."
Lastly, here's what I consider the most important rule about giving. Keep your good deeds to yourself. Don't announce to the whole world that you've donated $100,000 to your favorite charity or that you've helped save a child from a life-threatening disease.
If you really desire to give, do it secretly and in private.
Some people would write "anonymous" rather than their own names when they've made a contribution. The universe smiles upon these individuals, and they will get their just rewards in due time.