hi typing lower case cos onn ipad. Is mod podge worth buying or is it a glorified PVA glue? It seems as though it is a glue that dries clear but that it also acts as a varnish or sealant. Also I have been looking at image transfers onto glass but the American sites keepnreferring to clear Scotch packing tape - I take it that this is something different from your average sellotape do you know if it sold in the UK?