I went by a faucet shop to see what kind of garden faucets are available. I was surprised when the salesman showed me a couple with hot- and cold-water connections.
I thought, who waters their lawn with hot water? But the guy made a decent point that if you want to wash your deck or something similar, it may be good to have warm water.
OK, good point, and I might go for it, but still I can't remember ever seeing a garden faucet with hot water connection. Have you seen it, or even better, does your garden have such a connection? If so, do you find it useful in practice?