After wearing your three-piece grey wool, pinstripe suit out to a lovely naughty party, I suggest hanging your jacket on a nice wide proper wooden hanger, giving it a good brushing, and letting it rest, out of your closet, for a day or so.
Do be careful to hang your pants (neatly, on their creases, as those are easily muddled through sloppy hanging), and of course on a separate hanger.
Likewise, a third hanger is best for your vest and be sure it’s hung evenly.
With just a little care, I find any given suit needn’t be sent off to the cleaner more than a few times year, even living in my pinstripes suits as hard as I do.
Quality collar sticks, or stays, are one of the easiest little magic tricks of dressing well. (I presume you all know what they are, but they’re used to stabilize a fine shirt’s collar and keep it’s tabs pointing neatly down around the tie.) They are so easy to lose, though, I find it’s rather handy to keep a spare pair or few on hand.