Whenever Messenger of Allah ﷺ entered his house, he used tooth-stick first of all.  

أَنَّ النَّبِيَّ ﷺ كَانَ إِذَا دَخَلَ بَيْتَهُ بَدَأَ بِالسِّوَاكِ  

"What would the Messenger of Allah ﷺ do as soon as he entered the house?" She replied: "(He would use) the siwak." (Using translation from Abū Dāʾūd 51)  

قُلْتُ لِعَائِشَةَ بِأَيِّ شَيْءٍ كَانَ رَسُولُ اللهِ ﷺ يَبْدَأُ إِذَا دَخَلَ بَيْتَهُ؟ قَالَتْ بِالسِّوَاكِ  

[Machine] The translation of the passage is:

"When the Messenger of Allah ﷺ entered his house, he would start with using a toothstick."  

كَانَ رَسُولُ اللهِ ﷺ إِذَا دَخَلَ بَيْتَهُ بَدَأَ بِالسِّوَاكِ  

[Machine] That the Messenger of Allah ﷺ used to wet his beard with water when performing ablution.  

أَنَّ رَسُولَ اللهِ ﷺ كَانَ إِذَا تَوَضَّأَ خَلَّلَ لِحْيَتَهُ بِالْمَاءِ  

When entering the Khala', the Messenger of Allah [SAW] would take off his ring. (Using translation from Nasāʾī 5213)  

«أَنَّ رَسُولَ اللَّهِ ﷺ كَانَ إِذَا دَخَلَ الْخَلَاءَ وَضَعَ خَاتَمَهُ»