It seems that no matter how big your suitcase is, you always fill it to the brim  So it's not like we need more reasons to fill the truck. These 3 things could save your butt, and the last one won't take up any cargo space. I always bring a toolkit and tow straps on a hunting trip out of state. You never know when your truck or something else will break down, and being able to fix it yourself can save you a lot of time and hassle.  My legs started to go numb 12 hours into the 20 hour slog to Wyoming. Little did I know I had the front of my seat tilted too far up and it was cutting off circulation like those old weaved fabric lawn chairs.  I had brought it originally because herniated disks in my neck were making life unbearable.  I also bring a massage gun to massage my legs and neck after driving 20 hours to Wyoming. I'll need it even more after hiking up mountains with a pack full of gear and, hopefully, back with meat. ...