My roommate always throws out things, and sometimes they are important. For instance I laid out a toll charge I got in the mail today so I could remember to pay it. An added $25 would be demanded for a late fee next time the bill was mailed. I spent nearly a half an hour trying to find it, i was unsuccessful. I finally looked in the garbage and found it mixed with oil and grease. I have discussed my roommates throwing things out before, that are important. What if anything, should be my response to this?
Have you tried holding the item in your hand and saying, "this is important to me. I'm leaving it out as a reminder to my self, please don't throw it away."
In my work environment sometimes over communicating is necessary, even if it seems annoying. But what was once annoying becomes humbling when you realize why something needed communicated more than once.
You can also write on the object in question, "Steve's stuff." Or place it somewhere in you room that is usually considered off limits or a private space.
All suggestions are appreciated. From the lost and forgotten to the found and rotten! I find your recent ‘acceptance’ and gratitude is appreciated and a welcome energy to the site and atmosphere you have helped create here at the portal.