Husband of the Year stuff right here ;)
Melin has given you great overall tips, I'll stick closer to home to help you with the Cliffs of Moher part. What time of the year are you planning your trip? If it is anytime late Spring/early Summer, the evenings are really long, so arriving later in the day still gives you plenty of options. I would suggest you stay in Doolin while you are visiting the Cliffs of Moher area, there are 4 Irish music pubs in the village and each of them will have Irish music sessions, with at least 3 musicians in each for a great evenings entertainment. Check the Doolin Tourism website
for accommodation options.
Limerick is an easy drive from Doolin, and there is plenty of time to take a boat trip before leaving this area! Why not try a combination tour
to the Aran Islands and a Cliffs of Moher cruise on the way back? Inis Oirr is just 15 minutes by ferry from Doolin, You could depart from Doolin at 10am, leave the island at 145pm for a cruise to the Cliffs of Moher, be back in Doolin at 3pm, and in Limerick for around 4.30.
There would still be time to go the cliffs visitor centre after the cruise if you want to see it from the top as well (and it is much less crowded there from 4pm onwards)
I hope this helps your planning, let me know if you need any further information, happy to help!
All the best, Joan