You can also sometimes reduce DOMS by having a more thorough warm-up (I like to now put at least a 10 -minute cardio session before weight training sessions) and making sure that you have a diet high in antioxidants (green/white/red teas, berries, are some of the highest sources).
Also, having a protein/carbohydrate snack or small meal right after weight training can give your body the nutriets it needs at the right time. Make sure to have something ASAP (recommendations vary, but usually within an hour, though sooner is better---when I did a P90X rotation, I'd grab a "Power Dream" soy beverage--which has about the same macronutrient breakdown as the Beachbody "recovery drink"--after each weight session.)
Being sore almost every day isn't necessarily bad, but it can mean that your body isn't given time to recover between workouts, and if you work the same muscles again too soon, it may hinder strength gains. DOMS is partly due to the microtrauma (microscopic tears) in the muscle that is then repaired to build the muscle. Make sure you are getting enough recovery.
I personally don't think it's necessary to get 1 gm. of protein per pound of body weight. More like 1 gm. per LEAN pound of body weight (which for a woman at 20% body fat would be around 80% of your weight).