I know it's not a big thing, but one thing that I have been doing lately is warming plates for food. What I do is put the plates in the toaster-oven or regular oven for a few minutes before I put the food on them. For things like omelets, fish, and meat, it stops them from going cold as soon as you put them on the plate, and gives a few minutes to enjoy them.
Does anyone else have some cooking tips?