I take pics in full resolution for my camera, then I edit it the way I want and off to the Photo and Picture Resizer app
it's an android app that works really well at knocking down the size whilst still keeping a fairly good res on the pic
I use Imgur as well but if I am more in a hurry or if i don't have the best upload speeds in an area then I resize them and attach them
Good luck in finding a way to post pics, gdoo
This pic is sized from 4.3 mb down to 317 kb and only took a second to shrink it
Here is the same pic hosted on Imgur at file size
Hopefully they look really close to the same and hope that I have helped a little