Just like me, I have a lot of 18F452 and I wanna make it productive today, any idea of what projects should I start? I'm using CCS C and PicKit 3.That is quite an old device (although it is still 'in production'). There are newer and faster devices available (e.g. PIC16F18877).
If you are using this chip for fun and just because you have one then fair enough. If you are designing a new product then go for a better chip.