Buying a ladder? Then you should know that quality, type and size really matter. There are as many different types of ladders as there are jobs that require the use of one. There are small two- and three-rung step stools, 6- and 8-foot folding models and telescoping extension ladders all the way up to "fireman" size in reach. For home use, a standard 6-foot ladder is sufficient. If your ceilings are high (10-feet or higher), buy an 8-foot ladder so as to be able to reach light bulbs overhead. Don't try to save money by purchasing the least expensive one. It'll be rickety and unstable and will fall apart in no time -- often with you on it. Look for good connections, metal step supports and strong hinges. Over time, look for splits, cracks, loose steps, and missing rivets, screws and bolts. No. 1 rule: if it wobbles, it ain't good; that's when it becomes firewood. And that's your On The House Tip for today.