RX-78. If you use the products I've highlighted then nothing will be hard to apply or remove. I'm not sure what on earth you've been using before. Clay should be applied only when the car needs a thorough clean to remove heavily bonded particles like tar, and then use with lots of the supplied lube. Normally the CarLack AIO cleaner will do the job easily.
With waxes (and sealants to some extent) be careful not to apply too much, generally only a thin coverage is required. And make sure not to apply in direct sunlight / when bodywork is too hot. Finally don't leave on too long.
I have an Aw with red leather and 19inch wheels and Iove it
Purchased last July and gets loads of good comments.
A used car I must admit I've not seen one in another white as yet.
I think I made the water to hot first time round to soften the clay. 2nd time was better and it gets rid off all the bits stick on the paint (at one point a lot of road work was being done and I had lots of stuff diving onto the paint!)
Not sure where I went won't on the wax, prob being an amateur
I bit the bullet and added professional dossiers on the option today. I think I would have moaned about it for the next few years if I didn't sick that on!