Has anyone considered using this instead of grass clippings for there pipe sets? I know grass clippings are free but still have to go through the trouble of drying and storing. Just wondering if this would be a better alternative.

I just use some grass from the site. I carry a pair of heavy scissors that I use to cut into small pieces over the trap. Blends in better in my opinion.

Straw is heavy and large diameter.
Timothy is light and small diameter. Timothy is a better choice, in my experience. It can be bought by the bale, same as Straw, in my area.

Timothy is long stalk and used 'as is' or be chopped with a lawn mower.
A large feed bag full of Timothy, chopped two times by lawn mower, will yield a five gallon bucket.

A good source for 'chaff' is the hay loft floor.
Ask owner if you can sweep the hay floor. Take broom, shovel and something to carry it home.

chaff for me Hern