I have my brows done every couple of weeks, mine are always really dark (but my hair is black so they need to be). You need to have brows darker than hair, but obviously not so it looks like you've drawn em on with a marker pen (coz that would just look silly!). I've had lashes done for hols before too, it is really good (but does sting a bit). Agree that you need mascara at night. Had my lashes permed once too, but wasn't keen - they went a bit too short and curly and looked rubbish when I put mascara on.