No Kids, No Life, Just a Wife

There's this little old widow who lives across the street from me and was the very first person who made me welcome when I moved in to this area. She has 2 children, one of whom lives rather far away and the other is too wrapped up in his own life. So for Valentines day I thought it might be nice to leave a little gift on her porch. The question is do I get some flowers and leave them? Or make some muffins? She has been very sweet to me. Last winter I shoveled her driveway twice, it really was no big deal, I was already out doing mine. Her drive way is short but on a very nasty incline and I didn't want her trying to do it herself. A few weeks later I find a thank you card in my mail box with 2 gift cards worth $10 each ! So you can see she's a nice little old lady and I thought it'd be a nice thing to do. So idea's? Suggestions?