Set It with What You Have
You do not need matching china or a linen closet to set a beautiful table. How to use the plates, glasses, and odds and ends already in your cupboards.

A set table says that someone was expecting you. It does not have to say anything else. The plates already in your cupboard, the glasses from three different sets, and a few things borrowed from other rooms are enough to make a table feel considered. The trick is to make the mix look deliberate.
Start with one thing that repeats
A table reads as intentional when something is consistent across every place setting. It can be the plate, the napkin, the glass, or even just the position of the fork. Pick one element you have enough of and let everything else vary. Six plain white dinner plates with six different water glasses look collected. Six different plates with six different glasses look like a garage sale, unless a shared color ties them together.
Use the whole house
The best table decorations are usually not in the kitchen. A small lamp from a side table gives softer light than an overhead fixture. A cutting board becomes a bread board. A low bowl from the hallway holds lemons or whatever fruit is on the counter. Books can lift a platter, and a bedroom throw folded over the back of a chair makes the room feel warmer before anyone sits down.

Napkins do more than you think
Cloth napkins are the single change that makes a table feel like an occasion, and they do not need to match. Tea towels, cut and hemmed squares of linen, or bandanas all work. Fold them simply, lay them across the plate or tuck them under the fork, and stop there. A napkin ring is optional. A napkin is not.

Light it low
Candles are the cheapest transformation available. Plain white tapers in whatever holders you own, tea lights in small glasses, or a single pillar in a saucer all do the job. Keep flames below eye level so people can see each other, and turn the overhead lights down or off. Dim light forgives chipped plates and makes everyone look rested.
Leave room for the food
A table set for a dinner needs space in the middle for the actual dinner. Keep decorations small and low, or cluster them at one end. Serving from the table, with the pot or platter in the center and people passing plates, is easier for the host and feels more like a family meal than a restaurant. That is usually what people came for.
What not to worry about
Chargers, place cards, runners, and centerpieces are nice if you have them and invisible if you do not. Nobody will remember whether the water glasses matched. They will remember that the light was warm, the bread was on the table, and there was a chair waiting with their name on it, even if it was only in your head.