Place a plastic kiddie pool in the ground. Looks nicer. Then take it out in colder months and have a fire pit. i like it
Firepit with openings at the bottom for airflow and keep feet warm!!
Paint glow in the dark paint on plant potters for around the edge of the garden or patio
DIY - Line a pathway with rocks painted in glow in the dark paint...during the day they “charge” in the sun and in the evening they reflect the stored light. Rust-Oleum Glow in the Dark Brush-on Paint ♥
Barrel tables. Home Depot has whiskey barrels for $20. You can even change out the decor inside the barrell to fit the seasons! I'm so doing this!
Putting a bar rail on the deck for extra "table top" seating area that's out of the way, handy, and a good use of space. Put potted plants on it when it's not in use
bar height fire pit---perfect for smores and wine
How to build a faux stone walkway for around $40
Rope lighting around the garden...inexpensive, waterproof-