Three Men & Jewelry Headache

Three is the total number of men I've dated.
I remember when I was much much younger, my mom told me to not really be attached to the guy dated. It happened on a palmistry session with an old Chinese man with lots of wrinkle while he was pointing at my palm with a toothpick (mind you, it was a clean one, I made sure of that). He predicted a lot, which I can't recall anymore. However, one of the things I do recall he said is that I am the kind of person who would really devote her feelings to guy she's dating.
And my mom nodded with this expression, as if I shouldn't do that. Like, I shouldn't put all my eggs in one basket. And that I should date more.

But, I find it hard to do. I don't really get easily impressed with men, so I passed on many of them. Also, I don't want to purposely date multiple guys in the same time frame. And I also don't want to date one guy over another just like they are diapers. Wear and toss kind of attitude.
It is funny because she herself didn't date much when she was young. And she's the most faithful person on earth to my dad. Shouldn't she know that I inherited this from herself?

Anyway.

In the spirit of devotion, I just realized something the other day when I was in the office restroom, washing my hands and staring at myself.
I was wearing a pair of earrings that I got from an ex.
I remembered putting it on one morning when my mind was still dormant and I was just auto-piloting through my morning routine.
Now,...

Believe me when I say that I don't have sentimental memories by keeping the exes' gifts / jewelry. And I did ask myself, why on earth still I keep them?
I think I keep them just because they have real monetary value.
I did not even really think of it, until I asked myself, would I want my boyfriend to be wearing a gift from an ex. And immediately realized, I just had to get rid of them.

But, what should I do with them?
Toss them in the garbage?