I don't understand what you mean by what type, it changes all the time.
When I'm home I'll throw on some cheap jeans and some old t-shirt. When I go to school I throw on some designer jeans and a t-shirt and some skate shoes. When I go out at night I upgrade the tee to a button up shirt and whatever my newest (read: nicest non formal) pair of shoes is. If I'm going to a particularly fancy club or something I'll throw on a designer shirt to match my jeans.
When I go to formal meetings or events I wear one of my suits or a blazer. If it's mega formal (for example, my sister's wedding is the weekend following this one) I'll wear a tux. Can scale anywhere between the two with the color of shirt, tie, and existence of a tie bar.