I guess I am lucky. I have a corporate charge card that has no limit. Since it's charge instead of credit it has to be paid in full each month. The pitfall is that if it's paid late it gets a late fee and dings my credit. The charges show up automatically in my expense report and my employer pays the card directly. But twice they have paid late forceing me to pay myself so I don't get dinged. Then when they pay I have a credit that I have to figure out how to use. Really annoyying becuase I end up spending money on stuff I don't need just to get rid of the credit.