smoothing putty I use my wet fingers the use tools to make the folds make sure that the tools are smooth and clean, every spot on your tools will also come in your sculpt.
@ golan
from your tools I use 3 and 5 the most going from left to right, the last one I have never used, wen you get more in to sculpting its a idea to get rubber tipped tools the firm ones, they are great to get nice folds, the spoon part of #5 is also very useful for that