A bubble bath, with a nice cup of herbal tea, read a book. Makes a bath feel like a frivolous, recreational affair, when actually, I'm just washing my hair.
I buy squirty cream for my hot choc, and add a little cinnamon or nutmeg to the top: looks luxurious, costs pennies.
I have fruit for breakfast, three fruits, whatever is in season, wash it, core or dehull it, and cut it neatly into slices and have it on a plate, and eat it with a fork: always looks posher than it is!
I add nuts and seeds to my daily salads, always feels a bit more classy that way.
A couple of drops of essential oil into my vacuum cleaners filter sponge, nice fragrance while hoovering the house.
I have a lot of houseplants, and I trim them and clean and polish the leaves, makes them look shiny and loved.
I add cooking oil, just a smidgen, to my cooker top, makes it look shiny, stops food sticking to it.
Accessories: sunglasses, a necklace, a scarf. Makes me feel put together even when I'm just popping to the shops.
I always buy fresh herbs, basil, parsley, chives, etc. They look pretty on the plate. Same with lemons and limes, and cucumbers: add a slice or two to my water, feels fancy.
I saved all my lidded candle jars (£3, home bargain candles!), washed them out, put my herbal teas in there, cut out a section of the box label to tell me what the tea is: feels extravagant, but really isn't!
Polish all the shiny things: the chrome radiator in the bathroom, the taps, the mirrors, the glass on the clock faces, the brass top of my mushroom table lamp
Steaming my clothes. Just in a t-shirt because I'm WFH: but it's crease-free, and I'm wearing perfume. For me.
I think, for me, it's all those little 'garnish' type effects that make me feel cherished.