IFR Refresher info?

So I spent a couple years studying IFR regulations, procedures, etc.
and after I got my IFR rating, I didn't look at anything IFR related
for many months. Then one day I went up with a CFI, and I couldn't
remember basic things such as the 1-2-3 alternate airport
requirements. Anyone know of anywhere that has these important
regulations in a document, like a PDF refresher card, etc? I was
shocked how fast I forgot stuff...