Avoiding the manditory company CC
This has worked with several employers with "strict" use-the-company-card policies. Uncheck the box on the on-line CC application form that says, "I agree to the terms and conditions set forth in the mouseprint herin."
Few employers have had webware clever enough to make that box manditory. Screen-print the form so you can prove at a later date that you applied for the company card. Then, when the accounting department calls you on using a personal card, you butter-wouldn't-melt-in-my-mouth opine that your app is lost in the bureauacracy.
Rewards aside, the T's & C's for a company card make it a crappy deal. You give up the CC protections you have in a personal card. You can't dispute a charge.
This has worked for me at several major firms. Dear God, I hope they make better fighter jets than they do web applications!