I would send a few before discarding.  

You must be able to discard any traditional ways of thinking to be successful with his tactics.

I just wanted to make sure nothing had changed before I discarded your contact information.

A letter can be easily discarded and ignored, but face-to-face, he'd know you were serious, you'd have the opportunity to make your case and he'd be forced to at least answer you (even if the answer is no).

I visit once or twice a month and discard mail not belonging to any of the current tenants.

Or should I keep the stuffs in storage for a month and then discard if they don't reach me?

I also offered to discard of anything he didn't take with him What was the outcome?

Currently, that’s the first thing I look for in any deal and I discard the deal right away if I see not enough skin in the game by the GP.I would ask Brian too, but I respect that he doesn’t want to hijack your post.

This restoration company does not provide written estimate but advised verbally they would charge $1300 for opening, discarding damaged materials, drying, treatment. 

I'd like to send them a post card with a letter of intent to purchase and not have to worry about my letter/ post card being discarded.