For make up, you have to have that same mentality as per quoted earlier:
"If you can see yourself using it at a club, bar or to a formal event, AVOID IT"
If you haven't heard the expression before, you'll hear it here now... you don't need to 'cake on' your make up in order to impress someone. Small amounts in thin layers is perfectly fine, but don't overdo it. Bold colors are usually the spring/summer trends, which is perfectly fine, but putting massive amounts on your face to make it stand out too much isn't professional.
Here's an example of what's a definite no-no:

Can I wear it to a bar?
Can I wear it to a club?
Can I wear it to a formal event?
If you checked yes to any or all of the above just by looking at her, which you can, then you certainly shouldn't wear it to work.
Now here's another example of someone else:

What do you think as you go down the check list? I would say none because of the simplicity of the look, which is perfect for the workplace.

Keep in mind, if all else fails, always look at others around you or....
ASK SOMEONE TO MAKE SURE!!