Thanks. You write well by my measures. It is possible for there to be router firmware that makes the routers work together to pass data around all the DSL lines. I'm not sure it actually exists yet, but I've been trained on non-wireless Cisco routers, so Cisco's another place to look into. I'm not sure there are competitors at the level of Cisco that can provide the solution you are looking for. You can even bond the cellular connection, but depending on your plan you may not want to do that if you might run out of data during an emergency.
What works for me with bookmarks is that I have letters across the bookmarks toolbar and topics are filed under the letters. Games is under g, but game programming is under P|Programming|Game. Places that sell steam games is actually under B|bundles, though I think a link to store.steampowered.com is under S On Chrome and Firefox Slashdot is under "/." but it isn't in the Microsoft browsers because they won't import directories that contain characters forbidden by filenames.
I get phone service from MetroPCS and the terms and service has said in the past that torrents were not to be used. MetroPCS now offers free tethering for the $40 plan. I had to manually switch to the upgraded $40 plan from 2GB to 3GB at 4G speeds before it switches to 2G speeds. The $60 plan has unlimited data at "up to" 4G speeds, which means that data at any speed counts against that total. I had a 3G phone previously but could only get a 2G signal with that in a location I frequent. When I bought a 4G phone, in that area I discovered I would sometimes get a 4G signal and sometimes a 2G signal but never a 3G signal.