It wasn’t until I started working on this article that I realized just how little I knew about sun protection.

In the years I attended college in Seattle, where sunshine is relatively rare, it never occurred to me that the sun’s UV rays could still be seeping through the clouds. And when I am in a sunny place – like my first few summer days in Charlotte – I thought little about using sunscreen because I don’t often get sunburned.

I do use a facial moisturizer with SPF every day, but it has an SPF of 15, below the American Academy of Dermatology (AAD)-recommended SPF 30.

So when my editor asked me to try using sunscreen as dermatologists recommend, I was intrigued to see what it would be like to spend the day as someone who actually knows how to take care of her skin.

I found that it can be quite greasy.

I picked up a sunscreen lotion that has an SPF of 30, broad-spectrum (UVA and UVB) protection, and is water resistant, as recommended. Before heading out for the day, I applied it liberally to my arms, legs, neck and face. I immediately wished that I’d chosen a lighter daily lotion with SPF, as the grease on my hands made it difficult to grip my pen to take notes.

I waited 15 minutes before going outdoors – another AAD recommendation. I took my sunscreen with me to reapply it every two hours, even if I wasn’t going to be swimming or sweating a lot. I was in and out of the house from about 10:30 a.m. to 6:30 p.m., running errands, going to a park and sitting at a café. That meant three re-applications.

If not for the added grease, I didn’t mind pausing for a bit to reapply sunscreen because it only took a couple of minutes.

At some point, I put my hair up without realizing that I exposed my ears to the sun. I didn’t think to put sunscreen there. By the end of the day, my ears were hot and tingly.

It was then that I realized I probably saved my arms, legs, neck and face from the same fate by finally using sunscreen properly.

So am I going to wear sunscreen every day? Probably not. But I will consider increasing my facial moisturizer to SPF 30.

Joanna Nolasco is a Kaiser Media Intern in Health Reporting for the Observer.