I've only been playing for 3 years, but I can think of a couple of clubs that are very likely to stay in my bag for the next couple of years.
One is my Wilson Deep Red 5 wood - stiff flex fatshaft Graphalloy shaft. I hit it just short of 200 yards with a beautiful, high trajectory, and it just makes the sweetest sound.
Another is my Nike TW Lob Wedge. Deadly inside appx 50 yards, and brilliant when lobbing over greenside bunkers or the like.
Last on the list is my
Cleveland Halo 3i hybrid. Talk about easy to hit. Gives me great confidence in difficult lies and offers a "calm swing - long distance" weapon as a contrast to an agressive long iron swing.
Those three have delivered the goods on so many occasions, that I can't really imagine replacing them - unless they break (knock on wood).