Each of these cacti were from pots that were way too small and one pot that was too big.
This Opuntia (possibly a Nopalea cochenilifera) grew too tall for the short — and not very wide — pot it was in. It got upgraded to a new pot.
This cactus was in a very large pot with other cacti. We separated the arrangement and this one got its own pot.
This agave had a way too small of a pot. It got repotted to a new, larger couldron type pot.