Advice please?

Lindsey • 20, married, and TTC for 1 year
No matter what I do my cats keep peeing on things. I live in a small apartment so my options are slim. They get in my hamper and pee on all the dirty clothes. They pee on anything left on the floor. Fiancé leaves a towel in the bathroom floor after showering? They pee all over it. I love my cats so much but this is getting ridiculous. :( How can I stop this from this?? I'm buying a hamper that has a lid on it tonight but they get into my trash can with a lid all the time. Ugh.