Let me start by saying - my new most favorite pet product!!!! :)
I used to have many aquariums many years ago and one of the worst parts of the maintenance was to drag out the bucket and use the suction vacuum thingy to clean the bottom of the tank - ugh - it was part of the reason I gave up the tanks.
I found this little gem on Amazon:
Its a vacuum, battery powered. You just stick it in the tank and turn it on and voila - all the ick gets sucked up into that middle section which is the filter and the gravel stays put. It's like magic!! Once you are done you just pull out the filter, take off the bottom and give it a rinse. Super easy to clean up!! Did I mention - magic??? Even better - SteveIrwin and JackHanna didn't seem too stressed out to have me in there doing my thing. Cousteau did not love it but he just moved to the other side of the tank once I got close.
Check out this link where you can order it - or at the very least watch the video...
In addition there is a really cool app that you can download:
You pop in all your values from when you test your water and it tells you exactly what to do to correct any issues - totally cool!!