anyone have any suggestions for iphone/ipad users? thanks
I found "Image Resizr" by Geekme in the iTunes App Store. Installed it on my wife's iPad and it worked great. You can take a pic or pull one from your gallery and resize it in seconds. Just put in a width "640" and it will automatically do the height correctly. Saves it as the last photo in your gallery. Just select that in File Manager and you have your photo on Oldgas.com easily.
You can experiment with width. On horizontal photos, 640 pixel width should work great. On vertical photos, 480 pixel width should be fine.