What's the best way to kick it up a notch? I have a lemon cake mix and want to make it special. What happens if I put milk in the mix rather than water? Anyone have any ideas they'd be willing to share?
I'll be adding a pudding/cream cheese filling and a lemon buttercream frosting.
Thanks in advance!

How about using a little lemon juice and some lemon zest, to give it a scratch appearance? Maybe some slivered almonds?

I made a lemon cake mix and added a cream cheese pudding packet to it last night and it turned out wonderful! I also like the idea of adding some lemon zest.

I always use a water/milk mixture when doctoring a mix and it turns out great! I have a lemon mix in the cabinet....I think I'll have to make it this week-yum!

I usually add some fresh lemon juice, lemon zest and melted white chocolate, approx 1/4 cup, it tastes so yummy!!!

Thanks to everyone for the great tips! I had to make the mix this morning, so I took the advice of the first couple of you that posted. I replaced most of the water with milk and added some lemon zest.
The frosting that I've made was a bit of a frustrating time. I've made lemon frosting from scratch before, but this time it turned out WAY too sweet and tart. I guess I must have overdone it when I squeezed the fresh lemon into my frosting. So, I kept playing with it, adding this and that until I finally decided to fold in some freshly beat whipping cream. This made the frosting turn out so incredible! It's light and very flavorful, but not overly sweet. : )

I usually just add lemon pudding (and the extra egg) to my lemon mix and really like it. You can also add a tablespoon of poppy seeds and get a Lemon Poppy Seed cake.

I always use orange juice to make lemon cakes. For some reason it makes the cake taste more "lemony" not orange like you would think.

usually whatever the amount of liquid it asks for-- off the top of my head I think I use 1 1/3 cups of OJ and then I put a box of lemon pudding instead of oil. You can use 3 or 4 eggs depending on how dense you want the batter to be--4 eggs makes it more like a pound cake.

When you mention pudding mix, is that the powder or is it the pudding. I know it may be a stupid question but I am so new to this.

I add butter, water with lemon juice, and lemon zest. it ends up moist and tasty