Each of us has something to offer. We can give our money and our time to charity, be a friend to someone who is sick or lonely, do volunteer work, or be a peacemaker, teacher or minister. We may give unselfishly of our time to our spouse, children or parents. We may choose a service-oriented occupation, or we may just do our everyday jobs with integrity and respect for others.

Through service, we give others the things they lack, and we find meaning and fulfillment to our own lives. Both the Old and New Testament writings give many examples of the importance of service and charity. (from: http://www.christianbiblereference.org)

For as the body apart from the spirit is dead, so also faith apart from works is dead.
James 2:26

We should give as we are able. Sometimes that means giving more than 10 percent; sometimes that may mean giving less. It all depends on the ability of the Christian and the needs of the church. Every Christian should diligently pray and seek God’s wisdom in the matter of participating in tithing and/or how much to give (James 1:5). Above all, all tithes and offerings should be given with pure motives and an attitude of worship to God and service to the body of Christ. (from: http://www.gotquestions.org)

Bring the full tithe into the storehouse, that there may be food in my house. And thereby put me to the test, says the Lord of hosts, if I will not open the windows of heaven for you and pour down for you a blessing until there is no more need.
Malachi 3:10