Another Waves freebie - IR-L Convolution Reverb?

[TracySarah]

Give these lovely people your email address and they'll send you a registration number for the plugin
This was a big deal when it first appeared, but it's pretty old now and there are certainly fancier convolution reverbs out there. Also features the hideous tiny 90s-looking UI of early Waves gear (why don't they update these?)

But still holds its own in terms of sound, comes with a decent basic selection of IRs, you can load your own, very straightforward to dial in (not big in terms of features, which means the tiny UI isn't really such an issue - just adjust wet/dry and you're fine), and did I mention it's free