Employee Working From Home

I am not self-employed, I work for a corporation whose employees all work from home. We do not have a home office to go to. I do have some minor expenses every year such as print ink, paper, internet costs, etc that I do not get re-imbursed for. I am at the question in Turbo Tax about having a home office and it asks about square footage, mortgage, etc. I do not have a home business, I have a personal desk and chair I purchased 2 years ago,  but the laptop was given by my employer. Can I claim these and how ?