Put your empty bottles into boxes (boxes of 15-20 depending on size) that are capable of taking the weight when there full, best to put a bit of old newspaper or something below the bottles inside the box as well as there can be some spillage as bottles get filled. Have the beer either batch primed just before bottling or all the bottles primed just before filling.
Place your bottling bucket on a worktop and put all the boxes below the bottling bucket on the floor, once you have your wand and hose attached just sit and fill each bottle in each box, once you fill a box push it out of the way and start on the next, this will let you get them all filled in one go without having to stop/start handling full bottles.
You should be able to loosely screw the caps on with one hand while holding down the wand with the other and as the bottling bucket gets near empty you can tilt it with your free hand as well.