I have found that the small, inexpensive inverters are very noisy, can upset your
autopilot and radios, so just be aware.
A solution I found, and really like, is to get a TV that works on 12v (just look for a transformer that plugs into the wall and read the specs written on it) then get a 12v-12v power supply (35-50 bucks) to protect it from charging voltages.
Also, run the computer on an automotive adapter.
I've also added 12v-5vUSB outlets to avoid using 110v cell phone/tablet/etc chargers.
Generally, these approaches save us a few amps overall, and maybe 20 AH in a 24-hour period.