TP-Link PowerLine Adaptor
Always better than WiFi... Highly configurable too
An adaptor that lets you game or stream with Ethernet-like ping, even when your room doesn't have an Ethernet connection. [Amazon UK Link]
NETGEAR Dual-Band WiFi Router
Supports new and old WiFi devices simultaneously
Robust little WiFi access point that I use to extend WiFi to the back of my house, using the PowerLine adaptor as the input. Also has 4 Ethernet ports. [Amazon UK Link]
Samsung 860 EVO Solid State Drive
Use this to save your aging laptop or give your PC a power-up
Solid State Drive that I can't recommend enough. I replaced the failing Hard Disk Drive in my 4-year-old laptop and it was as if I bought a new computer. I also use one as the main drive in my PC. [Amazon UK Link]
Creative Sound Blaster Omni Surround 5.1 External USB Sound Card
External sound card for music boost and ease of use
External Sound Card so that I could boost the energy to my Surround-Sound speakers from my PC. An added benefit is that it moves the sound controls from software (my operating system (Windows 7)) to hardware (a physical dial), which is so nice to have if you like tactile feedback and not fidgeting with screen controls. [Amazon UK Link]