1. For the purpose of istinjah, take along water and lumps of clay. To use three lumps of clay or three stones is mustahab (preferable). If circumstances prevail, then this will be sufficient. Due to (clay lumps), difficulties are experienced in flushing the toilets. Thus, the Ulama have advised that toilet paper should be used so that the flush is not spoilt.
2. It was the practice of Rasulullah (PBUH) to visit the toilet with his head covered and with his shoes on. (Alaikum besunnati).