kjgEnergy
For what it's worth, trust me when I tell you that it won't be long before you don't notice them at all. 
That said, I remember back in the days of Quark, there used to be an Xtension which allowed you to turn these off if you didn't like them. Perhaps some generous programmer will take your plight onboard and write one for InDesign..?
In the meantime, here's a tip you may find useful if you frequently do a lot of the same stuff:
Create a document that is larger than your page size and, using a box the same size as the required area as a guide, add the crop, score and perf marks to that, group the marks (omitting the box) together and save them into a Library file (don't forget to label them so you know which ones are which). That way, when you need them you can just copy them straight to a new document onto a separate layer, lock it and forget about them.
Alternatively, you could just create a template (.indt) file with the marks preset.
It's a personal preference, but I prefer to use libraries as it means I don't need to convert a folder full of existing template files if I upgrade my software.
A little preparation goes a long way as you will no doubt find out as you progress in your career – you may even get a pat on the back from the boss for saving time…
Regards,
Harls