How often do you change your altar?

My altar has really been the same for a year or so now and its feeling kind of stagnant. I'm ready for a change soon! I want to start incorporating live plants and more crystals, partly because #aesthetic, but also because I want to really dive into Hellenic revival more heavily. Right now my altar is more of a storage space for my occult things and less a viable spiritual space. In the long run, I'd really like to change for holidays and celebrations, to keep my altar current.

Lately mine has been the same thing over and over, crystals, sometimes a plant (normally in the colder seasons because I want to have some nature still thriving inside), incense, certain ceramics that have witchy symbols, and shells ( I grew up with the beach so they feel very homely). It's all basically versatile, I have a small kotatsu (Japanese floor table) as my altar, and there are four square depressions in the wood, each about one inch deep. Thus each section is assigned an element, and If I have certain things that could be considered multiple elements, I put them on the space in between the squares or on the side closest to the other element. Ex. My incense could be fire or air, so I have the holder on the side nearest air. Ooh and candles are on there all year round. The only times I would decorate is probably Yule time and Imbolc-Ostara, and maybe near the end of summer weather, but that's about it. Happy witching!!