Here's an idea

Why dont we all grow weeds in our lawns ? I spend the entire Saturday removing weeds from one corner of my lawn! You start off with lot of energy trying to get them by their roots, and then as you get tired (due to the heat and what not) it starts to get into your head. The weeds are now winning the battle and they seem to hold on to the ground more tightly than ever. Now your mind starts playing tricks on you - you are imagining holding a blow torch and burning the last one down to the ground grining an evil laugh!

I admit the lawn looks better (at least the part which I worked on) after the fact. But all the while you cant help thinking - why not have a weed that looks pretty ? These things grow with minimal sunlight water or supervision. Lets face it - they dont face competition from weeds (duh!) and bugs dont seem interested in them. So, all you scientists working on seedless watermelons and freaky egg plants, here's your next assignment. Make weeds that look pretty. There's a huge demand for those!