See I think I'm lazy too .. so as someone said above I take the path of least resistance, but we have a tiny kitchen and don't own a dishwasher (tho the missus swears blind there's room for a slimline but I don't want one)
Path of least resistance .. wash it up as you go along during prep .. i.e. if you've chopped and waiting for stuff to boil then wash the board and knives straight away.
Wash the rest as soon as you've finished eating before it 'sets'as there's less waiting for stuff to soak and/or scrubbing.
+ I like to wake up and make a coffee in a tidy kitchen then a messy one.
The Missus and I have a deal. she cooks, I wash, but occasionally it goes the other way, and she leaves the washing up unless I moan usually just before bed, so she starts just as I'm trying to have a shower before bed
Oh, and I'm not sure a dishwasher's worth it. Maybe with a family of six but for 2 or 3 .. you still have to manually wash up so much. That and we've only got about 6 of everything so we'd have to go and buy more cutlery and crockery. And my experience of unloading my parents / in laws/ friends is that including drying the little bits of gathered water, and putting it all back nicely still takes as long as a quick load of washing up (if it had been fresh and 'un-set')