One must refrain from keeping brahmachari deties like Sri Hanumanji, Shani Maharaj, etc at home. If one keeping these deties/ idols should himself practice Brahmacharya and live a Sattvic life as a Brahmin. Never chant Hanuman/Shani chalisa at home, instead use local temple space to chant and get wishes fulfilled. Women should never touch idols of Brahmachari deties even at temples, it's a common sense in itself after all, else negative reactions observed in life automatically.
Also, one should avoid keeping Jyotirlingam if one can't duly worship daily, keep a constant water Dhara flowing over it.
It's best to worship and spend money to keep worshipping them in the temples instead, and get blessings instead of wrath.
Similarly, there are many other God/Goddess one must always be careful if out of child like mindset one brings them home and later due to grihast duties/forgetfulness doesn't worship them with proper rites and rituals, then it might invoke spiritual reactions from those deties.
One can ask for forgiveness and then, dutifully place deties/idols in flowing water to further prevent damage to family, avoid indulging in bad spiritual practices.
Daily worship of kuldevta,kuldevi, Ganpati is a boon in itself to Grihasts leading to the heavens easily, along with material gains fulfilled.
One can as per will perform occasional VRATA/Pooja of other deties on specific days but only with full commitment and respectfully, obeying all rites as per the scriptures/ Pooja rituals of that particular deity
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