I used to wear clipped to bra until a student quietly and respectfully told me that you could see it. I then started tucking it inside my brea and still do sometimes. But most of the time I now tuck into my pants where it is secure. I use remote control with Medtronic.
On a short trip I just take my injections. Although I have to always contact nurse to remind me of basal rates!! Medtronic good for holiday pumps when away for couple of weeks. Enjoy!