I'm making a linen alphabet sampler right now:
and I'm working on a long term personal sampler. I just cut off a large piece of fabric and every now and then I add some things.
There are so much kinds of samplers... I'm very fond of very old samplers. There's a great book in my local library with all the patterns of all the samplers in the collection of a famous museum in the Netherlands. It's truly amazing.
I have some charts of very old samplers, if you're interested in those. My favourite things to cross stitch are probably samplers.