What do you do to help your aging dogs?

I just got Cosequin for my old gal, are there any other helpful hints as your dog ages? Or supplments you’ve had success with, especially for heavy-boned labs?

The only reason I got the Cosequin was because she was starting to hesitate before jumping up on the couch, and was choosing the floor more often.

Just looking to make life easy for my favorite old gal. (And yes, several old comforters are on the floor for her now.)