Where would I claim business expenses like: Trailer maintenance (landscaper), and equipment maintenance? Seems like there's no category that really covers this.

is it just supposed to go in the "supplies" section? It's a large part of my tax return paying for equipment maintenance items. 

Also - do I have the ability to claim against a portion of my garage (shop) that I use for my business? It's a large 30x40 shop, that I have a space designated to store my equipment, and I work/maintain my equipment in there. My gear is stored in there all winter, seems like it'd be an appropriate deduction if it was allowed.

thanks,
Art