Hope all of us owning a car will know the pain of cleaning the interiors, especially the floor carpet. I hate that work! Yet, have no choice.
How do you do it?
Note, disregard the Vacuum Cleaner option. The intention is the make it easier for the ones who do not have access to it.
Here is my experience - Though I have a Vacuum Cleaner at home, I couldn't use it as I stay in apartment and can't pull out power cord from my home, neither would want to use the common electricity. Hence, I used to clean the floor with a cloth, accumulate all dust at a point and try to take them out. The last part is more painful than the entire process, yet not happy to get 100% satisfaction.
Of late, I tried using a brush, a hard one to clean the carpet and it's working well. Also, the stuff we use to pick garbage at home helps well to pick the dusts after accumulating it. Cons, the brush being harder, it make create bobbling in the surface and also the dusts is spread in to the entire cabin while sweeping it. So, I feel, a hand brush, maybe a little softer one that's available in auto accessories shop will do the job well.