Aside from wearing a watch and the occasional pair of cufflinks, jewelry should be kept to a minimum. OK, so you have your basic clothes. Buy them in colors such as black, navy and khaki that can be easily mixed and matched with a variety of tops. Once you find a type of shirt and V-neck sweater that looks good on you, buy several of them in different colors. If you have a business casual dress policy at work, assembling a uniform will make your life much easier in the morning.
Men are lucky.
They can get away with wearing the same suit all week with a different tie and no one will notice. Jane Co-Worker wore last week and wore again the following Tuesday. That comes later.