I don't know about you, but often times attributing coins from WIldwinds or such only yields Ric 45 or such, then I have to figure out which volume it is from. Here is a partial list of the first five volumes, which I know makes my life easier.
RIC I
Augustus
Tiberius
Caligula (Gaius)
Claudius
Nero
Clodius Macer
Civil War
Galba
Otho
Vitellius
RIC II
Vespasian
Titus
Domitian
Nerva
Trajan
Hadrian
Agrippa
Agrippina
RIC III
Antonius Pius
Crispina
Faustina Sr.
Divvs Vervs
Faustina Jr.
Lucilla
Marcus Aurelius
Lucius Verus
Commodus
RIC IV Part 1
Pertinax
Didius Julianus
Pescennius Niger
Clodius Albinus
Septimus Severus
Julia Domna
Caracalla
Plautilla
Geta
RIC IV Part 2
Macrinus
Diadumenian
Elagabalus
Severus Alexander
Maximinus
Paulina
Maximus
Gordian I
Gordian II
Balbinus
Pupienus
Gordian III (Caesar)
RIC IV Part 3
Gordian III
Tranquilina
Philip I
Philip II
Octacilia Severa
Pacatian
Jotapian
Silbannacus
Sponsianus
Trajan Decius
H. Etruscilla
H. Etruscus
Hostilian
Trebonius Gallus
Volusian
Aemilian
Cornelia Supera
Uranius Antoninus
RIC V Part 1
Valerian I
Gallienus
Valerian II
Salonina
Mariniana
Gallienus
Saloninus
Quintus Julius Gallienus
Claudius II (Gothicus)
Quintillus
Aurelian
Severina
Tacitus
Florian
RIC V Part 2
Central Empire
Probus
Carus
Carinus
Numerian
Magnia Urbica
Diocletian
Maximian
Constantius I
Galerius
Gallic Empire
Postumus
Laelianus
Marius
Victorinus
Tetricus I
Tetricus II
British Empire
Carausius
Diocletian
Maximian
Allectus
The Usurpers
Macrianus
Quietus
Zenobia
Vabalthus
Regalianus
Dryantilla
Aureolus
Domitianus of Gaul
Saturninus
Bonosus
Julian
Amandus