To make sure you're doing all you can to maximize your chance of getting pregnant, see: 1  Basal body temperature and cervical mucus. 2  Test your baby-making smarts. 3  Boost your chances of getting pregnant.
A wooden deck should be refinished or stained every 8 years, but no more than 10 times, otherwise the wood starts to loose it's stregth and becomes a hazard to users. A well maintained deck will have high quality stains and finishers that help prevent water and foot traffic damage.
There is no exact time period for how often your deck should be refinished or stained. It depends on several factors: the quality of the existing finish, the severity of the weather, the amount of traffic it gets, and whether you have animals that will scratch it. Only do it when necessary based on these factors.