There are a variety of ways to keep old gear up to date and functioning well, provided the stuff isn’t completely falling apart. Keep in mind, too, that some stuff can look fine—tents in particular—but the fabric can be so sun-weakened that it’s just waiting for a gust of wind to shred it.
Nikwax TX Direct
In your own home, you can launder nearly all outdoor gear and chuck it in the clothes dryer (with the exception of tents, which are best hand-washed then hung out to dry). Clothing can also be treated with one of several after-market liquids that restore or even add water repellency. Examples: Nikwax TX Direct Spray-On ($21; www.rei.com) for outerwear, and Nikwax TX-10 Polarproof ($11) for fleece and pile. You can also iron on patches of various types to plug holes and leaks. McNett makes a Gore-Tex Repair Kit that sells for $6 (www.mcnett.com).
So give it a shot, and keep that old gear looking great and working well.