Christianne, that is good advice. I do feel like my purchases this month have been wise (well, not wise money-wise, but wise wardrobe-wise...lol).
For instance, I have been wanting some short sleeve cardigans (having culled a couple of old crummy ones from my rotation), a spring-time blazer, a dressy neutral top, and a nice white button down. I did manage to find all of these items this month, and it was all on sale too (blazer was $31 after tax with coupon, dressy neutral top was $6 on clearance, and short sleeved cardi was $10 on clearance). I also managed to replace my dark bootcut jeans from last year (I wore them to death...they're still wearable, but not really "smart" looking anymore).
However, I also bought a few items (cheaply) that I wasn't really actively seeking to add to my wardrobe: a couple of pullovers and a long open cardigan from Old Navy (each was about $8 on clearance), a sweater vest (on clearance for like $6), and a bright faux wrap top from BR. These items are nice to have, but really didn't fill any wardrobe holes. Then again, I always have trouble finding tops for spring and summer wear. Most of the ones I had in my closet (apart from a couple I bought in January) are from at least two years ago; they weren't the highest quality items to begin with and have pretty much been worn to death.
Look at me justifying everything.
ETA: Oh good. I just realized that $75 of the stuff I'm counting in February's purchases was actually bought in January...I just didn't make the credit card payment till Feb. Somehow that makes me feel better!