Here's a couple of recent tying videos from Tightline Productions of Tim Flagler tying a spent caddis and an adult caddis. Now that we are well into the springtime hatches, caddis are an abundant food source for the trout, so its imperative that anglers carry various imitations when out on the water.
In addition to having spent and adult imitations, make sure you carry emerging caddis patterns, such as the Iris Caddis or LaFontaine Sparkle Emerger, and egg-laying patterns such as the Egg-laying Grannom Caddis. All three of these patterns are featured on the Tightline Productions video Vimeo or YouTube pages.
Sharpen your hooks.