What can I do with (surprise!) coco coir?

I just got a delivery of 4 blocks of coco coir.  My name is on the box.  I don't remember ordering it and none of my accounts (Vermont Organics, amazon, home depot) have any record of  an order. Suggestions on how to use it?

Use it as a soil amendment.

Who was the sender?

Coconut coir can help improve aeration and water retention in soils. When I have had some in the past I used it as part of a homemade seed start mix in addition to worm casting, perlite, and some sifted compost.

The blocks take A LOT of water to properly break apart and fluff up. I ended up putting a 15 pound block in a 30 gallon tote and would keep adding pitcher of water to gradually break apart the dry bits. Once it is sufficiently saturated it will take up a bunch of volume.

To note for those using it indoors, when the expanded coir dries out it can be very dusty. I like to spray it down with water before using it if it has sat for some time.

I like it in a seed starting and potting mix.....have bought some in the past and decided it was unaffordable for us but it worked great.

nice surprise!