The market is volatile right now, but that doesn't mean you should run and hide. The key is to stick with well-run companies and to own them for the long term. If you have $1,000, or more, to put to work and can afford to sit tight for 10 years, or longer, there are good companies on sale that you might want to look at adding to your portfolio. Three top options are W.P. Carey (WPC -1.47%), Chevron (CVX -0.36%), and PepsiCo (PEP -0.76%). Here's a primer on each one.1. W.P. Carey let dividend investors downT ...