what personal collections i should keep in my wardrobe
It really depends on your lifestyle. It's good to have a collection of upscale casual options for date nights and other special occasions. And then if you can, keep at least 1, maybe 2 dressier options on hand for last-minute cocktail party invites. Beyond that, it depends on what type of work you do and what you do in your spare time. Dress for your lifestyle!