We travel to customer sites when you need us. Every problem cannot be solved over the phone. Where travel is involved, we usually charge a minimum of four hours’ consulting fees or 50% of the consultant’s hourly fee. We expect full reimbursement for travel, including parking and IRS mileage rates for driving. If airfare and overnight lodging are necessary, we require clients to have a history of timely payment of invoices before we leave home. We provide receipts for all our travel expenses over $10. We manage travel expenses to long established standards learned in corporate life. We supply a copy of all receipts greater than $10.