How not to look like a sweaty mess in the office this summer - even when it's extremely hot out

Sweat can't ruin a dress shirt it can't touch. Avoid the problem altogether by wearing a light, breathable undershirt in a fabric like cotton. It won't help keep you cool, but it can save your shirt.

Make sure it's in a light color, so it can't be seen past a light-colored dress shirt.

Wearing the same fabrics in the summer as in the other three months is not a smart idea. Summer demands lighter and more breathable fabrics. Both cotton and linen are great choices, and they can be had in both suits and shirts. If you like the look of seersucker, that can help keep you cool, too.

Similarly, colors that reflect light, like white, beige, and light gray, will keep you cooler in general when you're outside in the sun. Colors like black, navy, and dark gray will absorb heat, making you feel hotter and sweat more.

Stick to the former, and you'll be better off.

If you're still sweating too much throughout the day, it might be a good idea to keep an extra shirt at your office to change into throughout the day. It never hurts to be prepared.

If you need more than two or three shirts in a day, it might be time to see a doctor. They can only help.