Best Use For Waste Sawdust?

 I like to think there's no real "waste" in my job. I make sure I build things fairly effeciently with the materials I have.

I end up with offcuts, but these are perfect for staring the fire. Some weeks I can produce two or three bins full of offcuts like this, I collect them through the year and we use them all through the colder months. 

Metal, from screws, mesh and other bits, I collect up and it gets taken to the scrap man for recycling. 

The other one is sawdust. 

What to do with Sawdust?

I've been using my planner a bit lately with the work that I do and it's given me a waste product I'm not sure how to use. The offcuts make great firewood and kindling but the sawdust isn't as useful. 

Although I've happily been using the waste product from my brothers work, in the form of wood chip on the garden, I'm still not sure with what I should be doing with mine. Sawdust from dried oak boards produced loads of tannin when it gets wet and all the water that pools around it turns black, not something I want to be spreading on the garden then! 

The ton bag below was produced from one mornings worth of planning up oak boards, so you can see how easy it is to amass a fair pile in a short space of time. 

Any softwood shavings are used as chicken bedding that are then composted down, but I'm still not sure what to do with all these oak shavings or other hardwoods, I'm creating huge amounts but it would still be good to put them to use.

Any suggestions? And I haven't got any meat to smoke so that's out for now!