Ski vacations can be expensive. Once you add up airline tickets, vehicle rental, lodging, lift tickets, food, lessons, equipment rental, baggage fees, apres-ski, and tips for instructors, you might just think you've made a down payment on a house or a new car. Despite all these costs, however, savvy skiers and snowboarders can save money on their next ski trip.

As a ski industry insider, people often ask me how they can save money on their next ski vacation. These are the most frequent cost-effective tips I share.

Take your ski vacation during the off-peak season.
This one may be obvious, but... ski resorts know they'll be packed during holidays and school breaks, so they really roll out the deals during off-peak times to lure in vacationers. This is a great time to find deals on lodging, airline tickets, and lessons.

If you have kids, you may need to make adjustments to their schooling to attend during off-peak times, of course. If you're kid-free, the beauty here is that skiing during off-peak times means the lines -- both on the slopes and in the restaurants -- will be much shorter.

Plan ahead.
Ski vacationers miss out on many deals by not planning months in advance. Many ski resorts offer pre-season ski pass sales months prior to opening for the ski season. These can offer significant savings over daily lift tickets. Discounted season passes are often available the last two weeks of the previous ski season -- and then offered again in early fall before the season starts. Don't wait until the lifts start spinning.