spruce up your old bags! lazy people edition

I thought that maybe some of you liked the idea of renewing their old bags but are not really ready to put a lot of effort and time into it or are just not that adept with painting and brushes. 
A quicker and easier way to add some pop to a bland bag can be to just add some geometrical figures like stripes using fun colors. Or you could just highlight a special area of the bag or paint a frame on it? And what about some cute patches?
Tip: You can always use tape to get clean edges and to simplify your work! Just like when you paint your walls :)
Here are some ideas to get inspired: