Kim, This is why I have my handy dandy xtra small pruners to get to those succulents hanging "way over" or growing so tall that they might tip the containers. It's also handy to know the growing rate and patterns of succulents you will be using so as to match the scale of the pot to be planted.
My dilemma is wanting to use really small pots and trying to find something tiny that grows well enough, but is slow in growing, matches the scale of the pot and is interesting to me...