When I was the treasurer of a PTA we started using PayPal and it was fairly easy to use and increased our memberships and other revenue. It's a lot easier these days to click on a website with a credit card than to whip out the checkbook. We amended our by-laws so that the treasurer "owned" the PayPal account, and when I left, a new person took over, we changed account details, etc. It worked well for us.