Saving impulses for convolution reverb

Hello, I wonder if anyone could shed light on something for me, please... I have just got my head around using convolution reverb in reaper but I can't work out where to save impulses so that I can use them! Any help would be much appreciated!

Yup. Just. Doesn't. Matter. I use a USB drive for sample libraries and keep a folder of Impulses there. They are very SMALL files, get loaded in a millisecond and are only accessed once... so you can put them anywhere you want.

Brilliant. I was using ReaVerb and that has answered my questions. A couple of hours messing around with ReaVerb would have been more productive than a couple of hours googling 'convolution reverb'! Thanks!