Well, I was expecting you to email me about it, but I guess it's not really a "secret" that there's an option for the newsbox to disable it's donation button. It's only meant for users who've talked to me first though, and want to handle their donations directly. DMFA (missmab.com) does this. Generally speaking, I'd say payments should be monthly, if you're taking in a fair amount in. If not, save it until it's more than 20 bucks, since paypal takes a cut, it seems wasteful to transfer lots of small amounts. It's up to you how you want to handle it. The other option is you can make your button go to the same link as the donate button on the newsbox does. Thing will be handled just the same as if they'd clicked the newsbox one, but it lets you have a bigger/more attractive button for donations. That option can be done with or without disabling the donate button itself.
Let me know what you want to do.