I like to keep the same type of glove.. much like all the equipment, including shoes. I do like to change to a fresh glove about every two holes.
It would be nice to have something like a glover to protect the opposite hand. Example my three fingers from the little pinky up have brused knuckles from hitting off "hard pan" fairways. I have started protecting them with tape, but I feel, at some point, the companies will design a three fingered glove to supported the off hand.
I have thought of getting a right handed glove and cutting away all the glove except for what protects those fingers/knuckles.
Short answer I keep to the same glove, brand, and weight.