I don't bother much anymore with Easter or 4th of July with the kids grown and gone, but still decorate for Christmas, or if we have a Halloween party. I also change out a few things seasonally.
I have an entry area with an old rock fountain that hasn't worked in years. So I decorate it with woodland wildlife figurines (our house looks like a mountain lodge) and add a few seasonal items for spring/fall/winter/Christmas.
I no longer decorate all over the house, just the little entry area and the dining table decor, except at Christmas when we add a Christmas tree and items on the hearth.
I take after Mom in having a fondness for pretty dishes. i used to have 3 sets- formal china (rarely used) that matched colors in our dining room. A set in more summer/fall colors, casual style, that went with our kitchen/dinette table, and then some pretty flowery spring ones for the rest of the year. Mom grew up in the Depression, never had anything fancy, so started collecting pretty dishes and glassware sets over the years.
After Mom passed at 91, I couldn't resist bringing in some red holiday dishes, too, a Depression glass tea set, and some beautiful Bavarian china that was my grandmother's. I even bought a corner china cabinet to hold them. Some stuff is stored up high on a shelf in the laundry room, taken down seasonally. I know it's silly to have so many, but Mom left other sets that got passed on to the grandkids, and I coudn't bear to have these special items go outside the family.
Now with a 5th vaccination, I'm ready to start entertaining and doing dinner parties again!