I have been wanting to share the love of Picnik for awhile now. Picnik is a lovely little online photo editing website. It's free to use the basic features, or, you can sign up and pay a ridiculously low fee to gain access to the advanced features (wrinkle remover being one of them.) It is extremely user friendly and does a wonderful job enhancing my photos. I eventually plan on purchasing Photoshop Elements (come on Costco, please put it on sale again soon!), but in the meantime, this works well enough to tide me over.
Here is an example of what I have done using Picnik:
Before. (A pile of completed tags ordered for Mother's Day.) After.
Trust me, pictures of your kids will turn out even better! Try it!