Being a Goth is not an easy thing. Especially when it comes to the clothing...Being a creative creature, a goth finds it hard not to wear goth attire everyday. I personally get depressed when i don't..Looking too "normal" makes me feel uncomfortable somehow..I have to stand out from the mass in some way!
Through the years, I learned how to tone down my gothic attire so that I look goth-ish anyway in situations like "Going to school" or "Going to work" or "Going to every other place where freaks are not well-accepted", all without being too "dressed up".
The trick is to make your look the less elaborated possible. Make it simple but effective.
Here's an example of me wearing a very toned down goth look.
(Not the best pic I could take but it's just to give the idea..)
For this look I got inspired by the pin-up / rockabilly / vintage look. Knee lenght stretched skirt and chunky heels. (It's actually my favourite attire infact I'm often dressed like this). In order not to loose my uniqueness I opted for a pair of shoes that catch the eye. Since I have worn them for the first time, I have been asked a thousand times where I bought those shoes and received thousand compliments for them. Also for the shirt, you can't see that in the picture but it's corseted on the back and on the front it looks like a normal blouse!
It's a simple look but still effective isn't it?
So, in my opinion the best way to look goth without showing it too much is to make it the more basic possible and concentrate on details instead!