it is a little spendy for bug removal, but Sprayway glass cleaner is excellent. Spray it on, and let it sit for a minute and scrub with brush and spray it off!!! I use it when i don't have my bug remover spray available.
Went with these from Amazon. they are $40 now, I picked them up for $26. I like the fact they mount easy. I will probably pull them off during the summer. I don't get on anything but paved roads mostly.
https://www.amazon.com/dp/B0D173XLC7?ref=fed_asin_title
Depending on how you use your bed. If i were to use it more aggressively...i would go with a spray in liner. For me, it isn't used that much. A full BedRug was the way to go. Looks like they are going for about $430 right now.