I keep multiple databases, cause I'm OCD like that :blush:
I use an excel chart as my primary source, mainly because it's more flexible with multiple booster stages and such.
I keep EMRR as my secondary source. It's nice for having all the fancy calculations and graphs, as a record that is not affected if my computer crashes, and as a public record. It also has some older flights on there, though the data is rather spotty.
I also keep full records of my flights on
my blog, with full info on the flights and pictures, this time for public consumption.