DOMS (delayed onset muscle soreness) is not an indicator of an effective workout. It will vary for individuals but honestly it's highly related to conditioning.
Consider the following:
- a new exercise gets you very sore if done hard, the next time you do it you don't get quite as sore, after a while some type of status quo is reached
- not working out and then jumping back in gets you very sore, but once you've been lifting for a bit it abates
- doing a ton more work than you are used to gets you more sore than usual even if the movement is one that you are accustomed to
- consider that training a lift 1x per week tends to result in consistent but moderate soreness whereas 2-3x per week results in little to know soreness once one is accustomed to it. Many in this forum will vouch that their very best strength and size progress has come from squatting multiple times per week with no soreness.
Very obviously, this is conditioning based and it's a self fullfilling prophecy. If you don't train when you have DOMS, you train less, so then you get more DOMS, which makes you train less. Your training should not be geared around this as a variable and unless you are very sore where it might cause an injury or issue, you should train right through it.
Also the best way to get "un-sore" when you are totally ripped appart is to train very lightly again, getting blood in the area and stretching it to help recovery and remove waste product.
Also, you might be interested in giving this a read. I promise you will find it worthwhile:
http://www.geocities.com/elitemadcow1/Topics/Training_Primer.htm