I have a number of short HTML files (actually they are XHTML) with small problems and answers, which I post on my blog every Sunday, and I'd like to merge some of them in an ebook. I already did it once, just by stripping the headers and footers and merging them together; then I create the epub skeleton with Calibre and tweaked it with Sigil. But since there are a lot of internal links, it is a time-consuming process.
Is there a simpler way?