Lowe's business card?

[Amanda G.]

I have a single-member LLC for my rental property and a Lowe's card in my own name for the 5% discount. I'm trying to decide whether to get a business one for my LLC.

Would the business card effect my personal debt-to-income ratio for buying more places with conventional bank loans?
Am I risking piercing the corporate veil if I use my personal card and then immediately reimburse myself from my LLC checking account?

I hope I won't need to use either more than a couple times a month, more when I acquire a new place and do the start up fixes.