Always match your underwear and bra to your skin tone. Leave lace, printed, and white underpinnings at home.
When shopping, put your hand behind the fabric to check its transparency. You might even ask the salesperson to let you take an item outside into the daylight.
A white dress shirt is always in style. You don't need to spend a lot for nice ones, but replace them seasonally—they have a tendency to yellow.
In the office, stick to sturdier, thicker fabrics (tropical wool; crepe). They look more professional than flimsier ones, like linen.
Unless you're a nurse, avoid white shoes. Match your skin color, or choose metallics or brights.
Apply perfume before getting dressed (to prevent staining); makeup after (to avoid smudging when pulling on clothes).
For the occasional spill, use Goo Gone Mess-Free Pen ($4.50) or a Tide To Go Instant Stain Remover Pen ($9 for three), which you can carry in your bag.
