I have a selection of systems, which I use dependant on the size of the stage etc.
Number one is my Shure glxd16+. It will do a 5 hour rehearsal without even breaking a sweat and dropping one of the 6 lights charge wise. pedalboard friendly and has a clear display with a built in tuner. also as it's the + model it uses both 2.4 and 5.8ghz.
number 2 is line6 relay g30. great for most pub and small shows. Easy to find at a reasonable price and pedalboard friendly.
with both of these systems the transmitter goes into my back pocket.
number 3 is a 5.8ghz bug type system I got on amazon for around £35. simple, and adjustable. Used as a back up.