One of the people of the past said, the righteous and intelligent person is the one who perfects his faraaid and a jaahil is the one who gives precedence to the optional actions and fadaail over the obligatory actions.
For example, a person prays a very long qiyam al layl and misses the Fajr prayer or prays his Fajr at home even though he lives close to the Musjid.
Praying at least Fajr and Esha in the musjid
Doing morning and afternoon adkhar
Adkhar before sleep
Memorise the book of Allah
Constantly doing dhikr; including lots of istighfar
Portion of the night prayer whether before or after sleep
Praying Sunnah prayers
These are just some of the ibaadaat a person should be doing. These are basic actions that even a pious Muslim should be doing.