I make custom made wreaths for all occasions and have found that pictures look best when I take them outside on a door. Unfortunately, the sun doesn't shine on my front door. I went and got a new inexpensive wood front door that I'm painting a beautiful grayish / blueish color on one side...

Hello. I am working on my first real DIY project, making a simple bedframe. I have sanded my pine boards, but notice that there are some holes from the knots in the wood. Can I fill this with spackle or do I have to use something special? I am NOT staining the wood. Only painting. Thanks for...