Wearing glasses from one city to another wasn't the most comfortable experience. First, I had to remove my glasses every time I had my photo taken (I'm not a fan of seeing glare on my glasses, that's why I take them off in photos). Second, they're kind of a hassle to wear while in transit. In Europe, we had to hop (and run!) from one train to another, and walk, walk, and walk. Oftentimes, my glasses slipped off my nose—and sometimes, my glasses would even fog up!
Thank God I discovered the magic of single-use contact lenses.