1. Take photos off of camera
  2. Choose which ones you want to put online
  3. Optimise with program such as XnConvert
    • I personally like to change the size to a max width of 1000px,
    • reduce the jpg quality to 70%,
    • and have them load progressively.
  4. Upload
  5. Attach to Post
  6. Link with [gallery link="file"] shortcode