One of the blessed dhikrs the Prophet (may peace and blessings be upon him) taught his wife Juwairiya was to say each of the following three times:
subhan’Allah ‘adada khalqihi (praising Allah the number of His creation)
subhan’Allah rida nafsihi (praising Allah until He is pleased)
subhan’Allah zinata ‘arshihi (praising Allah to the level of the beauty of His throne)
subhan’Allah midada kalimatihi (praising Allah to the extent of His words).
If someone can help me transcribe the Arabic, that would be much appreciated (I’m terrible at typing in Arabic!).