I'd like advice on post processing, specifically cropping and saving. I've been doing only basic processing (exposure, contrast, color correction) and cropping to 8x10 size for printing in the future. But is there a standard size that is best to crop pictures (other than taking out distractions or highlighting the focal point) - 8x10? 5x7? Also, what file format is best for saving the files? If I understand correctly, jpeg format flattens the photo and creates a problem if you want to 'do' anything with the photo's file in the future. TIA for the advice and patience.