HooToo 7-in-1 USB C-Hub | $ 18 | Amazon | Use a promo code THAH5PWQ on the way out
If you have one of those MacBooks with very few IO ports, Amazon drops the price on HooToo USB-C hub to low $ 18. This particular dongle includes an HDMI port, Ethernet, an SD / TF card reader, and three USB 3.0 ports for your accessories.
There is no USB-C connection, so you'll probably want to avoid this if your laptop only has one USB port. Just make sure to use a promo code THAH5PWQ on the way out to get the best price.
