Those 'other checks' are not hard to do, and can nearly all be done just by 'looking' (eg look through the clear plastic brake fluid reservoir and see that the fluid is between the min and max marks)
In fact, most, if not all, of these checks are something that any car owner should be doing regularly anyway -- all part of the process of owning a car. Checking things monthly, rather than waiting for an annual service, will often show up 'small' problems that can fixed cheaply, before they go on to become 'big' and expensive to sort.