The safest way to clean your gutters is to use a tool that allows you to clean them from the ground without having to climb a ladder. There are several tools available to clean 1-story gutters. There are fewer tools to reach 2nd story gutters, and very few tools that can reach and clean some 3rd story gutters. One of the few tools that can do all three is the Gutter Viper, which works best when attached to a leaf blower that moves 450 cubic feet of air per minute (CFM). It attaches to the end of a telescoping painter's pole (e.g., MrLongArm brand) you can buy at most large DIY store. Remember to use the safety glasses you always use when using powered tools! Wait for a dry spell to dry out your gutters and your task will be much easier.