Well, if you like charge up abilities, one of the things under consideration is adding more of them! Some of the work I did for the jam update was to make the Sword just be another tool, so that we could do more with the others. We are thinking that there may be hidden upgrades, which would allow the upgraded tools to have a charge ability. We haven't fleshed them out yet, and don't want to try to cram too much into a small space and make the rewards feel less rewarding, but we will probably get at least one or two in.
We will keep your suggestions in mind when we review the tools. Thanks!