My truck came like that from the previous owner. It worked well enough but I had a flat floor with no carpet so I could sweep things out just as easily.
I did that almost every fuel stop, just habit. BUT a vacuum is so much easier to deal with. I can't stand those air nozzle things that people use to blow out their cab. I was fueling up one day and had the windows open and the guy next to me used his and it created a dust/filth cloud and I had to spend about five minutes or so wiping everything down to get rid of it - and the crap stunk.
This is what I use. It only draws like 1 amp and the filter is large enough I only clean it when I get back the the house. It would easily last months. I use the crevasse tool that it comes with to really get into those nasty areas. It only cost like 20 bucks tops. It comes as a full size floor vac but the handle and floor part come off and you can use it like a handi-vac. And being a 120v tool, it has way more power than a rechargeable one and no batteries to go bad later. I've had this thing at my house as my hard floor vac for probably 6 years. Here is one at Target for 19.99. Dirt Devil® Simpli-Stik Lightweight Corded Stick Vacuum - SD20000RED I just took this pic of the floor of my truck under my pedals after using it. I am VERY funny about having a clean floor in my truck.