I drink a lot of tea, and I suspect quite a few of my fellow stitchers are tea drinkers as well. I usually drink my tea hot with a touch of honey and milk, and since I drink so much tea, I buy honey in bulk at the local warehouse store in a large plastic bottle. Sometimes I get lucky and can use the whole thing before it starts crystallizing, but sometimes, it starts crystallizing by the time I am halfway through the bottle, and it's hard to use.
However, I found a great tip to cure that - microwaving. Put some honey in a small glass jar and microwave on high until it melts, stirring occasionally (every 15-20 seconds). You need to be SUPER careful when you do this and you cannot leave the honey unattended. Honey in the microwave gets very hot, very fast. Be very careful when you do this! I tried it the other day, putting thick, crystallized honey into the jar. It melted down nicely, and more importantly, has STAYED melted. I was afraid it would go back to its crystallized state once it cooled, but it hasn't so far. So if you have problems with crystallized honey, give it a try!