When we join two or more expressions, we usually put and before the last.

• bread and cheese
• We drank, talked and danced.
• I wrote the letters, Peter addressed them, George bought the stamps and Alice posted them.

In two-word expressions, we often put the shortest word first.

• young and pretty
• cup and saucer

Some common expressions with and have a fixed order which we cannot change.

• hands and knees (NOT knees and hands)
• knife and fork
• bread and butter men
• women and children
• fish and chips

We do not usually use and with adjectives before a noun.

• Thanks for your nice long letter. (NOT . . . your nice and long letter.)
• a tall dark handsome cowboy

But we use and when the adjectives refer to different parts of the same thing.

• red and yellow socks
• a metal and glass table