| Knock on wood, but I pretty much never have pest problems on plants brought inside. For some plants such as citrus trees they just come directly inside, but in my area I just don't get pest problems on citrus. I spose if I lived in an area where there were lots of citrus it might be different. Anyway, for stuff like peppers as well as many flowers what I do is pretty simple and straight forward. 1. Remove plant from soil/container.
2. Drastically prune tops and roots.
3. Swish remaining plant material in a bucket of warm water to give it a nice cleaning.
4. Pot into container with new, very fast draining potting mix. Step 1 I consider important because potting mixes don't last forever before they retain too much water and not enough oxygen. I don't want the plant sitting in an old, collapsed mix indoors since it will just lead to health problems given reduced need for water indoors. Step 2 I don't consider mandatory if one has enough room for larger plants and has sufficient lighting, but reducing the plant size allows for more plants in the same space and by removing a lot of plant material a lot of the nasties that would have otherwise come in are left in the compost pile. Step 3 I consider important because many pests will simply dislodge and drown this way. Adding a little neem oil or insecticidal soap to the swishing water would be a good idea in cases where the plant is known to have pests already. Step 4 I consider important because overwintered plants won't need as much water as outdoor plants. For this reason I prefer mostly inorganic media consisting of fairly large particle sizes for overwintering plants. Less risk of root problems leading to decline of the plant. | 
