It depends!

Romans had a whole BUNCH of gods and each one had something different. Venus would be the one you'd pray to if you wanted to get that slave girl in the short cut tunic to catch your eye. Jupiter was usually reserved for big battles and important stuff, but was useful for smaller things as well. Depending on the situation there were...literally dozens of gods to pray to.

Sometimes Romans would steal gods from other cultures depending on what they were good for. Soldiers in the Army liked to pray to the Persian god Attis a lot because his cult had tiers in it which you progressed through much like the army's hierarchy. Ergo it was possible that a low-ranking foot solider could be his commanding officer's religious superior in a twist of delicious irony.

However, the most common deities in a Roman's world were the gods at home, the lares. Their origin is pretty unclear, although we're fairly certain they come from the Etruscan culture pre-dating Romans in Italy. They may be spirits of ancestors, or guardians of the home and hearth? The Romans had their own goddess for that, Vesta (compare to Greek Hestia) but they definitely had redundant gods back then.

Lares were so important that they are even mentioned in the literary work widely considered to tell the mythical tale of the founding of Rome, The Aeneid. In the tale, the titular character Aeneas flees a fallen Troy, carrying his father on his back as a sign of filial piety. His father, Anchises, grabs the lares and brings them with him as they escape.

You could also have gods associated with protecting a certain class of people or family. If you were a sailor you were definitely praying to Neptune more than other gods because you needed safe passage on the sea every day. If you were a farmer you might pray to Ceres, goddess of the harvest, for a good crop every day to ensure your plants would grow. It really all came down to need.

tl;dr - It really depends on who you are and what you're doing but most Roman households had lares which formed a pretty regular part of daily household life.