I can identify with the boredom problem. Where I live, I can go right or left when I exit my driveway and both routes are undesirable. Also, I've biked most of the roads in the area over and over again. Sadly, I find that the only solution to cycling boredom involves a car. The main motivational challenge for me is putting the rack on the car, putting the bike on the rack, and packing food etc. My main biking enjoyment comes from the scenery. There is plenty of that, but I have to drive to it. I find that NOVELTY is a big motivator, as in discovering new places. Another thing that overcomes boredom is combining other activities on a long daytrip---biking plus hiking, visiting a new place, etc. For the OP one solution might be fewer but longer trips that are worth driving to. I have the same problem with hiking and kayaking---going to the same places over and over for decades. I'm seriously wanting to move to another state for this reason.