Q.indoor Lemon Tree
I keep my lemon tree indoors through summer and winter but crawling bugs get in the dirt. How can this be because I never take it out of my house? What can I do to get rid of the crawling bugs?

It is not uncommon for insects to make their way into our indoor plants.
Here are some links that will help.
https://www.gardeningknowhow.com/houseplants/hpgen/common-bugs-and-pests-on-houseplants.htm
http://www.clemson.edu/extension/hgic/pests/plant_pests/indoor/hgic2252.html