I always said there were some projects I could do but everyone would know I did them. Here’s a great article about the pro’s, con’s and costs of doing your wood floors yourself or hiring out. It’s also part of the larger discussion about whether to just go ahead and replace them. For example if they were narrow plank and not top quality to start with maybe it’s time to take the cost of refinishing and put it towards new floors that are exactly what you want in style and finish. The delta might be less than you think. As always give me a holler for contractor referrals and info on what styles and materials are in and/or timeless.