My home is in Dallas and I commute to Cincinnati every week for work to client place as independent contractor. I have a LLC and bill the client on a corp to corp.
Is my hotel, air, car rental , gas, tolls, parking and meals tax deductible,

If I drive my own car, can i use the std mileage.
For meals, do i need to keep receipts or can i use the per diem rates for the city
Are the hotel stays and airfare deductible.
I dont do much work from home, should I have a home office setup to deduct this ?
I pay COBRA for health ins, so can i deduct this ?

I am planning to file as a S-CORP if needed.

What else can i deduct in my situation. I will be talking to a CPA but to this is to get started with..
Thanks