An very easy way... would be taking the pin out of the circuit and adding a switch + resistor.
I haven't really had problems using the arduino as ISP-programmer since I don't use it as ISP-programmer.

My point for "wanting" a jumper is/was resetting the PC. When you do that a non-Uno also resets, while there may be a need to only... reset the PC.
I haven't worked with uno though, one might be able to work around the reset-pin by programming the
ATmega8U2.