As Eric said standardisation is a must. Remember that during the season your vehicle is also your shed so should contain everything you may need during each apiary visit, plus a bit spare, each evening when you get home, before relaxing for the evening replace everything that you used that day.
Plan your visit rounds and stick to it.
You should aim to take five minutes with each hive on a 'routine' visit. Unlike what most people were taught at association apiaries, you don't do everything at every visit. Disease inspections should be planned for a few times a season and at that time, you do nothing else.
Normal daily inspections should just be a check for space, food, brood (presence of queen) and any signs of swarming. When you gain experience you will pick up little pointers to colony sickness etc, you don't need to search for it every visit.
Running around like a blue arsed fly never gets the job done, remember to take a five minute break now and then, it will save time in the end as you recharge the batteries and don't flag and make mistakes, which only slows you down