Commonly available fire starters include: clothes dryer lint (extremely lightweight), alcohol hand sanitizing gel, a small piece of candle, some insect repellents and even greasy potato chips.
Find more great tips like these in our Repair Guide
Synthetic insulated sleeping bags can be cleaned in much the same way as a down bag.
Lightweight hiking boots are generally made with nubuck, suede, nylon or Gore-Tex® fabric. Weatherproofing: Use ReviveX® Nubuck, Suede & Fabric Spray Water Repellent