Honestly though, in addition to dipping it's important to quarantine. When I was a bit stupider and more anxious I would always acclimate and dump stuff into my display tank. Big mistake. It unfortunately took me two times to realize that patience is key. Nothing is worse than emptying your tank and rearranging all your rockwork just to grab one damn thing out of the tank that you didn't mean to put in, or you meant to put in and turned out to be in poor health. Well, one thing is worse, when the rest of your tank has die off due to bad new livestock.
Setting up a QT tank isn't too hard. You can fill the QT tank with your DT water as part of a water change for the DT. I usually keep some filter media in the DT sump so that it can culture bacteria and be plopped into the QT tank when I need it.