USB flash drives work well. Charging cables work well. HDMI sometimes works well. WiFi (nowadays) sometimes works well. Chromecast sometimes works well.
Printing is (at best) in the "sometimes works well" basket.
Printing, like Wifi is entirely dependent on the devices you buy.
Buy a decent print server and a decent wifi AP (or a decent device that does both).
When I had a real job, HP were the print server to beat for us (a ~30 campus state-wide educational department). Now (in a home-office setup) I use an Airport Express with a Canon inkjet.
Maybe your experience is with Windows based network printing without a corporate network? I'm sure that probably sucks donkey balls, but honestly that's just another issue with the tools you choose. Choose a shitty print server or a shitty OS and you can expect to get shit.
USB flash drives work well. Charging cables work well. HDMI sometimes works well. WiFi (nowadays) sometimes works well. Chromecast sometimes works well.
Printing is (at best) in the "sometimes works well" basket.