The first step to applying caulk is to get the right tools together before you start. You do not want to be ready to apply the caulk only to find that you are missing something to complete the job. The first item you need is the caulk and you need to be careful when choosing one.
There are a few different types of caulk on the market and they will work best in different areas of your home. Vinyl latex caulk will be best for areas that stay dry while silicone caulk is better for wet areas like your bathroom. If you are going to be applying caulk outside, you should look for butyl rubber caulk.
Once you have the right caulk, you need to get a caulk gun which helps with dispensing. You also need to have a retractable razor scraper and some blue plumbers tape. If you are using silicone caulk, you also need to get some rubbing alcohol. The last item you need will be several small cotton rags.