What acts of worship did the Prophet, may Allah bless him and grant him peace, consistently observe whether at home or while traveling?

The Prophet, peace and blessings be upon him, was the most devoted in worship to his Lord and was keen on earning His pleasure in all his states.

As for travel, in addition to the obligatory prayers, he was keen on observing some Sunnah prayers such as the two rak'ahs before Fajr (Raghibat al-Fajr) and Witr. However, it is not recorded that he performed the other regular Sunnah prayers (Rawatib).

The Prophet, peace and blessings be upon him, was constantly engaged in the remembrance of Allah at all times, as reported by Aisha, may Allah be pleased with her.