If you are staying fairly close to home (not visiting a foreign nation) then the main thing you need to do is to remember all your chargers! Or pick up one of those devices with multiple output voltages/connectors. They are expensive but if you do a lot of traveling, one may be worth the money.
If you are going abroad, voltages and plugs may be an issue. Check what is used at your destination and get whatever you need for plug adapters! Fortunately, most electronic chargers nowadays work with the two most commonly used electricity “formats”: 120 volt, single phase AC (alternating current) and 230 volt single phase AC. Check yours before you try it though. Some devices only work on one input voltage, and some still have a physical switch for changing between the two!
One piece of advice I have should be read at your own risk; having multiple devices does not mean you need plug adapters for every one. A simple 3-way plug adapter should allow 3 devices to be plugged in with one plug adapter without problems. Be careful not to overload it however, and check it the first few times you try it to see how warm its getting. Hot is bad. (I am a welder and often use a 230 volt welding machine with standard extension cords.)
Check your chargers, get the plug adapters you need (and any voltage adapters if required) and don’t forget anything! Best bet to not forget: lay out all your devices on a table or bed and plug the chargers into them when you pack.