Can anyone recommend a good plugin that allows clients to login to my website to pay their monthly invoice by credit card? Do you have any experience with one that works vs doesn’t? Any advice is much appreciated! 

Thanks, Glen. I found that one too. I plan on testing it out this week. Let’s hope it works well.

Thanks, Erik! I hadn’t heard of Dwolla. I don’t think it’ll work in this situation, but too awesome that they only charge $.25 per transaction over $10. I dig it!