donate any leftover money to CFAR, so as to avoid the donor illusion
Then there would be a partial donor illusion if people thought they were causing money go to effective charity that wouldn't otherwise when they're really just influencing how I divide money between the AMF and CFAR.
(This is all assuming I think CFAR is about as good as AMF. I haven't looked into CFAR enough to have a good idea on that account.)
Giving money to effective charities is one of the ways we can have the biggest positive impact in the world. If you've been thinking about giving to GiveWell's top-rated charity, the Against Malaria Foundation, but haven't gotten around to it, perhaps this will help: make a donation of up to $2K and I will match it 100%. I'll match up to $20K this way.
(Any money left over at the end of the year will also go to the AMF. That makes this a donor illusion, in that you're not actually affecting the amount I give them this year.)
I made the same offer on my blog