Just as your skin dries out quickly in the winter when the furnace is running, your hair suffers as well. You can spend a fortune trying to find the right conditioning product. The fact that companies have so many choices depending on your particular hair type adds to the confusion. For daily use, most people do just fine with an inexpensive brand. Better yet, you can make your own from items you probably already have in your home.
Vinegar makes a great conditioner, and is particularly good for removing hair product buildup. Just mix 3 parts water to 1 part vinegar, pour it over your hair, and then rinse. Be sure to keep your eyes closed tightly.
Lemon Juice works the same way as vinegar for a conditioner or buildup remover. Mix it in the same proportion as above.
Mayonnaise is good for deep conditioning. Apply it to your hair and comb through. Leave it on for about 15 minutes. Rinse it out, then shampoo and rinse again.
Eggs are also good for deep conditioning. Beat an egg thoroughly with a small amount of water. Pour the mixture onto your hair and comb through. Leave it on for about five minutes, then rinse, shampoo and rinse again.
These are just basic conditioners that are easy to make and use. If you want to get more creative, try some of these recipes: http://www.girltalks.org/beauty/Homemade-Recipes/Homemade-conditioners.htm