I am still debating how to vote, because like most of the informed posters here, I understand the constraints on what is possible because of the debt burden. Inflation is dropping back, and interest rates will follow, which should help. The black hole remains however, and unless productivity improves rapidly (possibly through investment in technology, the downside of that will be job losses though) there won't be enough growth to create a lift and feel good factor.
I am cheered that @JassyRadlett thinks there are grounds for optimism, and a huge YES to improving planning policy. But until the benefits system is scaled back to stop subsidising big employers' low wages and limited hours contracts, it won't happen. If cheap labour can be imported, then there's no appetite for investment. In the 1990s, automatic carwashes were fairly standard but now, near me, it costs less to get a handwash and mini valet from the Albanian/Romanian place than the machine which also harvests and reuses the wash-water. A stupid example, I know, but telling.
Today's FT suggests turnout is going to be low, and their tracker of 46 polls indicates that both major parties have lost support (although Labour's lead remains steady at 20%). If these figures come to pass, the result would give the two main parties combined under 63% of votes and the minor parties' near 40% share won't be recognised in Parliament by elected MPs.