1- During the amidah at what words should one take each step backwards and fowards?
2- If one is wearing tzitzit kattan A and then switches to B and then back to A does one make a bracha each time? If one used the bathroom and there is no place to wash one’s hands with a kli, can one still say the appropraite bracha and listen to torah outside the bathroom?
3- When is oversleeping considered ones with regards to saying amidah tashlumin ?
1. One takes three steps forwards before beginning the Amidah prayer. These steps can be taken as one recites Ado-noi sefasai tiftach. One should take three steps backwards after saying yihiyu leratzon, at the end of the Amidah. After reciting the yehi ratzon (sheyibaneh beis hamikdash), it is customary to take three steps forwards.
2. One would certainly make a new blessing upon putting on talis katan B. If one returns to wear tallis katan A, one would make a new berachah if a considerable time has elapsed (a couple of hours is certainly sufficient), or if one had no original intention of putting it back on. If there is no keli, washing hands under the tap is sufficient.
3. Oversleeping is considered ones with regard to tashlumin, provided one didn’t go to sleep during the time when one could already daven. Opening one’s eyes and rolling over (while there is still time) is a borderline case, and depends on the maturity and intent of the person involved.
Sources: Concerning washing after bathroom use, several poskim are not concerned for ruach ra’ah in today’s bathrooms, which is why one can be lenient without a keli (Minchat Yitzchak I, 60; Yabia Omer III, Orach Chaim, 2). Note that it is in fact permitted to say berachos even with ruach ra’ah on one’s hands (Mishnah Berurah 4:39).