Over the years I have had many conversations with people about being saved by faith. The conversations have tended to end up at "Are we save by grace or by works?" I don't think it is an either/or situation.
One is saved by grace by accepting Jesus Christ as our savior. We accept that grace doing what he has asked us to do. If we don't keep His commandments, then we don't accept Him.
Some might say that men aren't perfect so we can't keep His commandments. One of the things he has asked us to do is repent. If we do that on a daily basis we can get better at keeping the commandments. He knows our hearts.
In the comments I will include scripture references that talk about grace and works.
People tend to make faith synonymous with grace. Doesn't faith indicate action? When the scriptures talk about faith are they talking about grace? There is one that often gets sited about being saved by grace through faith. It talks about not being saved by works because people boast about their works, but that does not mean that faith does not include continual action. We cannot earn our way into Eternal Life, but we must continually strive (do our best) to do what he has asked (keep his commandments). What ever we fall short on his grace makes up the rest, but only if we are striving to keep the commandments.