In the fall, go around the neighborhood and collect items from nature. Our neighbors have sweet gum trees, which make a nice wreath. So do pine cones.
Pretty leaves make a nice table decoration, learn how to preserve them.
Go to www. pinterest and look around there, lots of activities that use items from around the house to make things with.
Cooking or baking needs to be done anyway, so go online for new or familiar recipes and learn to cook.
Garden, yes, some seeds would cost some money, but the rewards from a small tomato garden is measured in how many BLTs you can get out of it. Not to mention a tuna stuffed tomato,