If you've ever wondered what it would be like to make a living from the craft you are so taken with, then it might be time to find out. If you've been selling pieces on and off for years, your earnings and output only really hindered by the time you need to devote to your day job, then it's worth considering swapping the latter out for the former.
The most important thing you can do is make sure that your work is out there for people to view and purchase. Having a place in a local gallery or on eBay is all very good and well, but a personal website or an Etsy page, or even a home right here will mean that whether you're on your stall at the local market or you're at home with your feet up playing around on Foxy Bingo or watching TV.
It's also worth joining a local community of those involved in the same or similar crafts to you, not only for community support and socialising, but also to get your name out there. Gallery appearances and sales sometimes depend on who you know, rather than what you know, and it's important to network if you want to become known for what you're good at.
Also, learning to market yourself is vital, as if people aren't aware of your work or why it's worth investing in, they're not going to do so - maybe they will, but certainly not as frequently as they might be. In order to make this work as a career, you need to be organised, present within your community, and a name people refer to when thinking of your craft. Get online, visit local events, attend gallery exhibitions even if your work isn't being shown, invest in the work of craftspeople whose work you enjoy, and put in as much as you want to get out of it. Only then will things start to go your way.