My method is same as GiGimum, very work ga. I only bring (1), because I will choose the destination( those clean and civilzied plaza, e.g. new town plaza). I will also bring the alochol wet tissue/ alcohol spray, clean the toilet first / spray and wipe, then put the 摺合小廁板 on top, then my girl will have her vv. very good. I brought it from Watson. cost $55 . And u can find it in eugene club (ho fa).