1. In addition to snow angels and snow people, let your imagination run wild! How about a snow castle, snow turtle, snow race car? Let your child's current interests lead your play. In our yard we have a snow aquarium, a bird nest/cave with snow eggs, and a two-seater race car. There is more than enough snow for multiple building endeavors!
2. Snow paint! Grab an empty spray bottle or squeeze bottle, fill it with colored liquid and paint away. Food coloring works great, you can also use powdered drink mix (like Kool-Aid or similar). Keep in mind that the spray bottles might present a challenge for mittened hands, so be prepared to help out and fend off any frustrations! Empty ketchup or other condiment bottles work well.
3. Eat it. I have some reservations about letting my kids eat as much snow as they would like - because they could possibly eat the snow off the entire porch and save us some shoveling. However, I love to bring a big bowl inside for some fun. It is amazing how far a glass with just a 1/4 cup of juice can go when scoops of snow are added to it! Orange juice slushies are a big hit at our house.
4. Sledding! This also has the benefit of being a GREAT workout. No hill? No problem... put the kids on a sled and get mushing! You get a great workout and they think it is hilarious to be pulled around. This one can last as long as your legs do.
5. Don't forget the playground! Until my daughter started preschool I never really considered playgrounds to be a winter option... but the swings are still great (unless the snow is so high it is covering the seats!) and the slides are still fun. Use your best judgement about ice and safety conditions, but don't automatically abandon the neighborhood park until spring.
6. Too cold to stay outside? Bring the snow in! This works best on a non-carpeted floor, or set out a couple layers of towels to soak up most of the melting snow water. Even the youngest Alaskans seem to enjoy being able to experiment with the wonder of snow in a nice warm house. It doesn't take much --- just put the snow in a big enough container that they can have some fun exploring. We used to fill a saucer sled for our 18-month old and it entertained her for quite a while. Provide some scoops, spoons, or summer sand toys and play!
Winter is here for more of the year than it is not, so let's get out and enjoy it! Even before they are old enough to ski or skate, kids can have some great outside play time. Use your parental judgement to decide if it is warm enough to stay out for long - then have a blast!