Spring is rapidly approaching, and if that thick stack of March fashion glossies sitting on your table is any indication, we know you've got loads of seasonal shopping inspiration to comb through and distill. Of course, not all warm-weather trends make sense in our microclimate-ridden city. And those pricey springtime designer duds decorating your Pinterest board? Yeah, let's just admit they are the stuff of dreams…not your budget.Therefore, we thought it wise to sift through it all and narrow the wish list down to 12 key buys that are especially important for S.F. ladies. From long-sleeved frocks that we can wear well into foggy August to go-anywhere sandals that can easily navigate these hilly parts, we've got your must-buy list right here. Major bonus for your wallet: they're all $50 and under! Ready, set, shop.