You can buy sockets with a pre-wired decoupling cap that is connected diagonally across pins 8 and 16.
You could easily do this on a PCB, perfboard or stripboard and site the cap inside the socket and laying flat directly underneath the chip. For SMD it's even easier as the space under the IC is often spare real estate that can sometimes be utilised if you're struggling for room and you are using a socketed DIP.