Food banks are popping up all over the place to help in times when most needed. The people going have swallowed their pride for the sake of their family. You can help by popping to your shop and adding a few extra essentials when doing your own shop. Ask family and friends to look in their own cupboards and find things they may be able to spare. I did this last year and took two huge boxes to our local Foodbank. Offer to help out once a week or even once a month. Volunteering your time is a better option, if you yourself are short on money.
Soup kitchens are another great way to help others less fortunate. You can find your local soup kitchen through DO Something. Spending a couple of hours with those who live on the streets or in a bedsit, lonely on a daily basis, makes such a difference to people.