Dress Etiquette?

[ladiesman217]

One of the things that's rarely discussed is what are the do's and don'ts of what to wear when visiting a lady.
I know some consider it ok to wear a tracksuit but personally I would never wear one yet alone visit a lady in one.
The main reason I ask this question is I'm out now in very casual attire, jeans and a t-shirt and i have a notion to visit someone but would it be considered ok to arrive so casually dressed? It's not far off what I normally wear (shirt and jeans) but I still feel a little conscious with what I'm wearing. What do the ladies think, would I be ok?

Regarding track suits, IMHO the only place where tracksuits should be worn is the gym, out jogging or something to that effect. I would actually kill myself before I'd go out wearing a tracksuit in public, let alone visiting the ladies