Hello and thank you for considering a donation!
Paypal has outrageous fees for small sums. So if you consider donating below $5 I think you should rather buy yourself or a loved one something nice :-)
You can simply donate bitcoins to 1NG8BfDzequeiCDewn7v2AF4FcBKGxzKkH.
If you have litecoins send them to LZeWjWFFM2HxzM8zdGxagK8AT6E6gen7RG instead.
For feathercoins use 6uWPpv9zebZbFzPGmSEx4f6S55S9JS7ag4.
If you don't have any money at all you could write about my software and link to my site, that makes me happy as well. In any case, thank you for your interest and for visiting this page!
Here's my amazon wishlist, probably only works from Germany...