board maintenance

want to get some suggestions from you guys how offen should I do the hot wax and edge sharping for my board, now i am doing every other year and i go snowboard 6 times a year in average.

When your edges are dull, you should sharpen them. One good test to see if they are dull is to scratch your edge on your fingernail. It it peels up a little, it is sharp enough.
You should wax your base when it becomes dry. The base will start to look white and patchy in areas. Particularly by the edges. If you ride ice a lot, you will be sharpening and waxing more.