Need to give your portfolio a lift? In this week's Shares we offer 15 ways to get your ISA holdings ship-shape with a selection of ideas from investment experts, plus a couple of ones to watch. The editor also discusses Theresa May's Brexit plan and what it may mean for investors. We reveal three ways to bolster your pension pot, and go through the routes to buy Apple, the world's biggest company, and other for foreign stocks. There's news on the bank that predicted the financial crisis, a mega fine for an aero-engineer, and we explain why the market value of pharma firm Shire has jumped eight-fold in 10 years, plus other interesting features, company news, our best investment ideas, market stats and much more.