Shemoneh Esreh

Davening in a place with a different nusach

Praying in a Place with a Different Custom

Davening in a place with a different nusach

Being in a Place with a Different Custom

Repetition of the Amidah

Chazzan's Repetition within 13.5 Minutes after Sunset

Morning blessings

Forgot 'Elokai Neshamah' and did not concentrate on 'Mechaye HaMeitim'

Grace after meal (birkas hamazon)

Remembered during the Amidah that 72 minutes have passed since his meal

Personal requests

Prayer for Spiritual and Material Needs on Shabbat

Praying in a minyan

Started His Prayer After Everyone

Blessings of the Shema

Completing "Ahavat Olam" After Prayer

Mentioning God's name

Announcing the Miracles Before the Amidah

Mistakes in davening

Mistake in 'Al HaNissim'

Mistakes in davening

Mistake in the Silent Prayer

Mistakes in davening

Chazan Skipped a Blessing in the Repetition of the Amidah

Mistakes in davening

Hashkiveinu after the prayer

Mentioning God's name

Song of Ascents during the Ten Days of Repentance Alone

Shemoneh Esreh

Studying Commentaries During Prayer