What to o with your 9-12 month semi mobile baby in the winter

Multi part question; Geared more towards stay at home moms but , any answers welcomed . What’s there to do in a cold weather winter state with a baby who won’t quite be walking yet. We’re in central Wa and it will get quite cold in the winter too cold to just “play outside “ regularly. Plus when you’re little isn’t quite walking there’s not much to do outside in the cold. We have a small place we just moved into it’s big enough we can hold him for walking practice but small enough that soon as he’s runnin we’re gonna be outside ALOTTTT. Home activity wise , what are some things to do with a 9-12 month old in the wintertime? Also, this mama is cheap/ballin on a budget -thanks in advance!