If my cat died, what would I do with her poor little body?

My cat isn’t dead or dying, so forgive the morbidity. It crossed my mind that if she passed away, I wouldn’t know what to do with her. We live in a townhouse community and have no yard in which we would be permitted to make a grave. I’d hate to just put her in the trash.

Have any of you had a similar problem? What would someone’s options be if they lived in an apartment complex or other regulated community?