I usually upload photos from digital camera directly, by inserting SD card to the laptop. Today I have looked around some of the photos I've taken this year in Picasa 2 and played around with the very basic retouch feature that it has: brightness, highlight and shadows. It also has other effects like sharpness, but I haven't use most of them. Anyway, It's pretty simple but to to me it gives a great improvement.
So I saved some of them and uploaded to Flickr tagged retouched. How do you find the difference?