A simple but crucial tip: check your work often. Just pause and look at what you have done for the past couple of rows. Why you ask? Well.....I was working on this very simple 1x1 ribbing for a sock cuff. I thought it was going great - what could be easier, right?? Then I just stopped and looked at what I had done. Yep, you guessed it, there were 2 purls together 2 rows back which of course threw off everything going forward from there. Sigh. I picked back the stitches one at a time and started again. The photo above is after recovery - I was too disappointed to feel like taking a photo of the actual errors.
So, fixing errors will NOT make your sock knitting faster. What will make it faster is not making (obvious) errors in the first place. Carry on & knit, fellow brave knitters.....:)