I discovered that jam and lemon or any type of curd can make them go soggy faster than a chocolate ganache or buttercream type of filling.

I've also learned that macaron box inserts are a great way to store them. They work in the fridge or the freezer. I got mine at Amazon. Here's a link: https://www.amazon.com/gp/product/B00JDPWSO4/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

Hope this helps & happy baking! :)