Fortunately, I've never really had this problem, because in my family we don't ever schedule these types of things during Holy Week (besides, my whole family, with one or two exceptions, goes to the same church). But, I do remember one year when we had friends from Ohio who were visiting family in New Jersey, and the only day they could manage to visit was Good Friday (they're Hindus, so it was just normal Friday for them). So I was sorta in a bind, but my mother pretty much solved my dilemma by telling me I wasn't going to go to church that day. This annoyed me to no end (Orthodox Good Friday rules!), but I had no real say in the matter. So I settled for going to an RC service in the afternoon, and periodically excusing myself from our guests in order to read the Hours at their appointed times. It wasn't ideal, but it's what I chose to do. If you can go to services at all, by all means go. If you can't, make do with what you can. Do you have any liturgical books you could take with you for those days?