In the media settings image sizes we understand that
128x128
575x575
950x950
are the maximum sizes. Ok home page slide show images need to be maximised to get the best resolution and filed seperately. However, for other images / photos, to prevent putting the same image in 3 times for other posts / gallery what is the best practice? Should all images be best put in at 950x950? Then does the post software automatically show / convert thumbnails into larger images when the thumbnails are clicked on?