to dorje87 :
Thank you so much for your appreciation. For daytime outdoor shooting (landscape, building and street photography) usually i use aperture f/8-f/11 (hand hold) also f/16-f/22 (with tripod). For the nighttime outdoor shooting i use f/2.8- f/4.5 (hand hold) and f/8-f/11 (with tripod). all aperture number (F number) also depend on the brightness of main light + ambient light of surrounding, the slowest (movement effect, shooting at low light area) vs the fastest (freezing effect, also if shooting againts a very bright light source such sun, giant stadium spot light to avoid the broken gradation of the light source at the photo) shutter speed that i can get and what kind of result i want to achive (like how the sharpness of the object, how sharp/blur the background, need to get or to cut the ambient light, want to make the photo become abit over exposure +1, normal 0 or under -1, etc) it is also just like try and error.....so depend on what i like and which aperture can give me the better result.
I am sure you also have your unique and your favorite aperture number for your shots ;p
At PP (post processing / editing) with Adobe Photosop CS 2, usually i use tool : brightness & contrass, curve (with masking editing), color ballance, etc. i seldom use sharpness tools, i prever use curve tool which i feel it can give me more natural result looks (both the color, brigtness / shadow, and the contrass).