I'm reminded of the story of the widow who gives only a little bit of money in the temple, but in the Lord's eyes, that is much. Jesus argues that the widow has given the most because the rich may have given from their surplus, and have not sacrificed anything, yet the widow has sacrificed greatly. She has given "even all her living", suggesting that she may not have money for food.
I could sit back and say, "I have a lot on my plate now. I have to focus on my family." Etc. Etc. Ad Nauseam. Me Me Me. This might be true, and yes, it has its place. But giving when I sacrifice something? Is much greater in the Lord's eyes. He appreciates me giving when it is convenient for me, or when it doesn't take that much sacrifice or energy. But when it takes all I've got? To the point when it seems impossible? It is greater in His eyes.